A High-Res Render of the image above can be found here:
http://fc04.deviantart.net/fs70/f/2011/005/5/1/kabbalah___tree_of_life_by_7rayes-d36ijd4.jpg
The Astral Realm is the land of the dead and the place where we go when we dream at night. This is why in greek mythology Death (Thánatos) and Sleep (Hypnos) were brothers.
At the core of every religion and myth resides deep esoteric knowledge which has not been properly taught to the public for 1000's of years... This video explains what happens to us at the time of death... and gives many clues on how to have a pleasant experience.
This knowledge is not based on intellectual theories, but rather on direct experience of the inner realms... experience that anyone may gain for themselves with the correct practices... practices which have also remained hidden from the public until very recently in our his-story...
The Speaker is Irme Vallyon who in 2008 won the Ashton Wylie Charitable Trust Book Award for his four volume treatise "Heavens and Hells of the Mind", which the judges described as "a remarkable and exhaustive work on human consciousness and the wisdom of the ages."
About the Tree of Life:
"The ancient symbolism of the Kabbalah serves to reveal the essential structures in any religion or mystical tradition. Through in depth meditation and conscious reflection upon the structures and laws represented in this glyph, one gains insight and deep understanding of our place in life, the universe, and spiritual development. Stated another way, if this symbol and its meanings are merely retained in the intellect and are not made conscious through awakening and conscious application, one will gain nothing. It is only by awakening consciousness and experiencing the truth that we grow and develop as we should. This is accomplished through moment to moment conscious attention and the development of the skill of meditation."