Excerpt from a letter from Matilda MacElroy published in the book ALIEN INTERVIEW, edited by Lawrence R. Spencer:

“It has been almost exactly 40 years since the crash at Roswell.  Since then it has become obvious to me that I have been able to communicate telepathically with Airl for one reason: I am one of the 3,000 members of the Lost Battalion.  At this time, all of the members of the Lost Battalion have been located on Earth as a result of The Domain Annunaki Mission and their use of the “Tree of Life” detection device.
Through my communication with Airl, I have recovered some of my memory of lives I’ve spent on Earth over the past 8,000 years. Most of these memories are not especially important compared to the long backtrack of events, but it has been a necessary stepping stone to regaining my awareness and ability as an IS-BE.
I can also remember some dim patches of my life in The Domain Expeditionary Force.  I was a nurse there too.  For the most part I’ve been a nurse over and over and over again down through the ages. I stick with being a nurse because it is familiar to me. And,  I enjoy the work of helping people, as well as members of the race of biological beings in The Domain whose bodies look more like insects than mammals, especially their hands. Even doll bodies need some repair once in awhile, too.
As I remember more about my past, I realize that the rest of my life is in the future.  Eternity is not just in the past.  Eternity is in the future.  At this point I am still not able to fully return to The Domain.  I am sentenced to eternal imprisonment, like all other IS-BEs in the living Hell called Earth, until we can disable the “Old Empire” force screens.
Because I won’t keep my biological body much longer now, I am intensely aware that very soon I will be recycled through the amnesia process of the “Old Empire”, and stuck back into another baby body to start all over again — without any memory of what went before.
As you know, members of The Domain Expeditionary Force have been working to solve this problem for thousands of years. Airl says that even though The Domain has located all of the Lost Battalion officers and crew, the success of freeing them depends on the IS-BEs who are already on Earth. The Domain Central Command cannot authorize any personnel or resources, at this time, to conduct a “rescue mission” as this in not the primary mission of The Domain  Expeditionary Force in this galaxy.
So, if IS-BEs on Earth are going to escape from this prison, it will have to be an “inside job”, so to speak.  The inmates will have to figure out how to get themselves out.  Various methods of recovering the memory and ability of IS-BEs have been developed over the past 10,000 years on Earth, but none have proven to be consistently effective so far.
Airl mentioned that the most significant breakthrough was made by Gautama Siddhartha about 2,500 years ago. However, the original teachings and techniques taught by The Buddha have been altered or lost over the millennia since then.  The practical techniques of his philosophy were perverted into robotic religious rituals by priests as a self-serving instrument of control or slavery.”

“It has been almost exactly 40 years since the crash at Roswell.  Since then it has become obvious to me that I have been able to communicate telepathically with Airl for one reason: I am one of the 3,000 members of the Lost Battalion.  At this time, all of the members of the Lost Battalion have been located on Earth as a result of The Domain Annunaki Mission and their use of the “Tree of Life” detection device.

Through my communication with Airl, I have recovered some of my memory of lives I’ve spent on Earth over the past 8,000 years. Most of these memories are not especially important compared to the long backtrack of events, but it has been a necessary stepping stone to regaining my awareness and ability as an IS-BE.

I can also remember some dim patches of my life in The Domain Expeditionary Force.  I was a nurse there too.  For the most part I’ve been a nurse over and over and over again down through the ages. I stick with being a nurse because it is familiar to me. And, I enjoy the work of helping people, as well as members of the race of biological beings in The Domain whose bodies look more like insects than mammals, especially their hands. Even doll bodies need some repair once in awhile, too.

As I remember more about my past, I realize that the rest of my life is in the future.  Eternity is not just in the past.  Eternity is in the future.”

– Excerpted from the final letter written by Matilda MacElroy, published in the book, Alien Interview.

“The Domain Search Party devised a wide variety of electronic detection devices needed to track the electronic signature or wavelength of each of the missing members of the Battalion.  Some were used in space, others on land, and special devices were invented to detect IS-BEs under water.

One of these electronic detection devices is referred to as a “tree of life”. The device is literally a tool designed to detect the presence of life, which is an IS-BE.  This was a large electronic screen generator designed to permeate wide areas.  To the ancient humans on Earth it resembled a sort of tree, since is consists of an interwoven lattice of electronic field generators and receivers.  The electronic field detects the presence of IS-BEs, whether the IS-BE is occupying a body, or if they are outside a body.

A portable version of this detection device was carried by each of the members of The Domain Search Party.  Stone carvings in Sumeria show winged beings using pinecone-shaped instruments to scan the bodies of human beings.  They are also shown carrying the power unit for the scanner which are depicted as stylized baskets or water buckets, being carried by eagle-headed, winged beings.

Members of the aerial unit of The Domain Search Party, led by Ahura Mazda, were often called  “winged gods” in human interpretations. Throughout the Persian civilization there are a great many stone relief carvings that depict winged space craft, that they called a “faravahar”. “

– Excerpted from the Top Secret transcripts published in the book, Alien Interview.

Annunaki carvings may be seen at the British Museum, The Pergamon Museum in Berlin and the Bowdoin College Museum of Art.

One of these electronic detection devices is referred to as a “tree of life”. [i] (Footnote) The device is literally a tool designed to detect the presence of life, which is an IS-BE.  This was a large electronic screen generator designed to permeate wide areas.  To the ancient humans on Earth it resembled a sort of tree, since is consists of an interwoven lattice of electronic field generators and receivers.  The electronic field detects the presence of IS-BEs, whether the IS-BE is occupying a body, or if they are outside a body.

A portable version of this detection device was carried by each of the members of The Domain Search Party.  Stone carvings in Sumeria show winged beings using pine cone-shaped instruments to scan the bodies of human beings.  They are also shown carrying the power unit for the scanner which are depicted as stylized baskets or water buckets, being carried by eagle-headed, winged beings.”

– Excerpted from the transcripts published in the book, “Alien Interview”

“Trees of life appear in folklore, culture and fiction, often relating to immortality. These often hold cultural and religious significance to the peoples for whom they appear.

The Sumerian (or Persian) Tree of Life was represented by a series of nodes and criss-crossing lines. It was an important religious symbol among these peoples, often attended to by Eagle Headed Gods & Priests, or the King himself.

• In Chinese mythology a carving of a Tree of Life depicts a phoenix and a dragon – in Chinese mythology the dragon often represents immortality. There is also the Taoist story of a tree that produces a peach every three thousand years. The one who eats the fruit receives immortality.
• An archaeological discovery in the 1990s was of a sacrificial pit at Sanxingdui in Sechuan, China. Dating from about 1200 BCE, it contained 3 bronze trees, one of them 4 meters high. At the base was a dragon, and fruit hanging from the lower branches. At the top is a strange bird-like (phoenix) creature with claws. Also from Sechuan, from the late Han dynasty (c 25 – 220 CE) is another tree of life. The ceramic base is guarded by a horned beast with wings. The leaves of the tree are coins and people.
• In Egyptian mythology, in the Ennead system of Heliopolis, the first couple, apart from Shu & Tefnut (moisture & dryness) and Geb & Nuit (earth & sky), are Isis & Osiris. They were said to have emerged from the acacia tree of Saosis, which the Egyptians considered the tree of life, referring to it as the “tree in which life and death are enclosed”.
• The Egyptian’s Holy Sycamore also stood on the threshold of life and death, connecting the two worlds.
• In Germanic paganism, trees played a prominent role, appearing in various aspects of surviving texts and possibly in the name of gods.
• The tree of life appears in Norse religion as Yggdrasil, the world tree, a massive tree with extensive lore surrounding it. Perhaps related to the Yggdrasil, accounts have survived of Germanic Tribes honouring sacred trees within their societies.
• In Norse Mythology it is the golden apples from Iðunn’s tree that provides immortality for the gods.
• The Tree of Life is mentioned in the Books of Genesis, in which it has the potential to grant immortality to Adam and Eve. (However, it is not immediately obvious, nor is it universally accepted, that the Book of Genesis account and the Book of Revelation account speak of the same Tree of Life.)
• A Tree of Life, in the form of ten interconnected nodes, is an important part of the Kabbalah. As such, it resembles the ten Sephirot.
• The Tree of Life appears in the Book of Mormon in a revelation to Lehi (see 1 Nephi 8:10-12). It is symbolic of the love of God (see 1 Nephi 11:21-23), and sometimes understood as salvation and post-mortal existence.
• Etz Chaim, Hebrew for “Tree of Life”, is a common term used in Judaism. The expression, found in the Book of Proverbs, is figuratively applied to the Torah itself.

• Among pre-Columbian Mesoamerican cultures, the concept of “world trees” is a prevalent motif in Mesoamerican mythical cosmologies and iconography. World trees embodied the four cardinal directions, which represented also the fourfold nature of a central world tree, a symbolic axis mundi connecting the planes of the Underworld and the sky with that of the terrestrial world.
• Depictions of world trees, both in their directional and central aspects, are found in the art and mythological traditions of cultures such as the Maya, Aztec, Izapan, Mixtec, Olmec, and others, dating to at least the Mid/Late Formative periods of Mesoamerican chronology.
• Directional world trees are also associated with the four Year bearers in Mesoamerican calendars, and the directional colors and deities.
• World trees are frequently depicted with birds in their branches, and their roots extending into earth or water (sometimes atop a “water-monster”, symbolic of the underworld).
• The central world tree has also been interpreted as a representation of the band of the Milky Way. Fragment of a bronze helmet from Urartu, with the “Tree of Life” depicted.

• In ancient Armrenia around 13th to 6th century BC, the Tree of Life was a religious symbol, drawn onto the exterior walls of fortresses and carved on the armour of warriors. The branches of the tree were equally divided on the right and left sides of the stem, with each branch having one leaf, and one leaf on the apex of the tree. Servants (some winged) stood on each side of the tree with one of their hands up as if they are taking care of it. This tree can be found on numerous Urartu artifacts, such as paintings on the walls of the Erebuni fortress in Yerevan, Armenia.

• The symbolism of the tree is mentioned in the 135th hymn of the 10th book of Rig-Veda, and in the 15th chapter of Bhagavad-gita (1-4).
• In the Japanese religion of Shinto, trees were marked with sacred paper symbolizing lightning bolts, as trees were thought to be sacred. This was propagated by the fact that after they passed (died), ancestors and animals were often portrayed as branches on the tree.
• The Book of One Thousand and One Nights has a story, ‘The Tale of Buluqiya’, in which the hero searches for immortality and finds a paradise with jewel-encrusted trees. Nearby is a Fountain of Youth guarded by Al-Khidr. Unable to defeat the guard, Buluqiya has to return empty-handed.
• The Epic of Gilgamesh is a similar quest for immortality. In Mesopotamian mythology, Etana searches for a ‘plant of birth’ to provide him with a son. This has a solid provenance of antiquity, being found in cylinder seals from Akkad (2390 – 2249 BCE).
• One of the earliest forms of ancient Greek religion has its origins associated with tree cults.

In mystical traditions of world religions, sacred texts are read for metaphorical content concerning the relationship between states of mind and the external experience of reality. As such, the tree is a manifestation/causal symbol – the Tree of Life representing the coveted state of eternal aliveness or fulfillment, not immortality of the body or soul. In such a state, physical death (which cannot be overcome) is nevertheless a choice, and direct experience of the perfect goodness/divine reality/god is not only possible, but ever present.

Once the ego (surface consciousness) experiences shame, having been tempted to absorb or believe in duality (such as eating of the Tree of Knowledge of Good and Evil), we are protected from living eternally in that limiting, fallen, experience by the cherubim guarding the gate of return to paradise. The cherubim are symbolic of the perfect knowledge of self or true nature, with the power of purification and return to being.“

– Reference:  Wikipedia.org