Devachan
[Sanskrit, “dwelling place of the shining ones”] The ascended masters teach that devachan is the first three levels of the etheric octave. It is the place of wish-fulfillment, where the soul may be assigned between embodiments to play out unfulfilled desires and prepare for the next incarnation.
For more information
Elizabeth Clare Prophet, On Death, Discarnates and Malevolent Spirits III (audio recording).
Sources
Pearls of Wisdom, vol. 36, no. 25..