In the bardo one has...the ''yilu'' (''yid lus''), the vision body (''yid'', consciousness; ''lus'', body). It is the same as the body of dreams, the mind body."〔Lopön Tenzin Namdak and Dixey, Richard (2002). ''Heart Drops of Dharmakaya: Dzogchen Practice of the Bön Tradition''. Snow Lion Publications. ISBN 1-55939-172-3〕

Buddha Shakyamuni often told his disciples to regard all phenomena as dreams. He used many examples, like an echo, a city in the clouds or a rainbow to illustrate the illusory nature of the phenomenal world. Dreams represent just one type of illusion. The whole universe arises and dissolves like a mirage. Everything about us, even the most enlightened qualities, are also dreamlike phenomena. There's nothing that is not encompassed within the dream of illusory being; so in going to sleep, you're just passing from one dream state to another.〔Shugchang, Padma (editor); Sherab, Khenchen Palden & Dongyal, Khenpo Tse Wang (2000). ''A Modern Commentary on Karma Lingpa's Zhi-Khro: teachings on the peaceful and wrathful deities''. Padma Gochen Ling. Source: () (accessed: December 27, 2007)〕