A word used in Theosophy (and therefore The Secret Doctrine by Blavatsky) occassionally referenced by Samael Aun Weor. Apparantly the word is a compound of the Sanskrit deva, "god," and Tibetan chan, "possessing, having." Theosophists use the word more or less like the "heaven" in most religions, describing a place where people go when they die.
"Through Wisdom and Knowledge, one can reach Nirvana and be free from the cycle of birth and death, and even the "false bliss" of Devachan." —H.P. Blavatsky, The Secret Doctrine
"Far beyond the astral world we have the world of the cosmic mind. Theosophists claim that this region is the "Devachan," where after death the disincarnated spend a happy time before reincorporating again… We emphasize the idea that while it is true that the upper part of the mental world is extraordinarily beautiful, not all human beings have access to that higher part. What is normal for them is to return; they reincorporate without having enjoyed the delights of Devachan." —Samael Aun Weor
In the lecture "The Mysteries of Life and Death ," Samael Aun Weor describes the Davachan as "a region of ineffable happiness in the World of the Universal Superior Mind." And in "Mental Representations ," he says:
"The dead commonly waste much time in the Devachan. I will not deny that this Devachan is a place of happiness and delights, but the figures that make life in the Devachan agreeable are merely living representations of the families, parents, and friends they left on Earth. In one word, the forms of the Devachan are living mental representations, or effigies. They result in a bizarre nature, that is why I say they waste too much time in the Devachan, but they are happy in this place. They feel accompanied by the loved ones they left on Earth. They do not even remotely notice that this world of happiness is full of mental effigies. If they noticed, they would lose the Devachan for themselves."