I dunno. Dharma and Science are rather different tools of measurement. Many things are considered possible in the Dharma world, or even "ordinary," that are either negated or unexplained by science. I believe truly dreamless sleep is one of them. There is also the attainment in which awareness/mindfulness is continuous throughout the entire sleep cycle. So lucid dreams and even deep sleep lucidity.Kaya wrote:During REM (rapid eye movenent) sleep, all humans dream. Not all recall their dreams. I believe my dog and probably most other mammals and birds, as hypothesized by scientists, also dream.
When samadhi is cultivated to truly superhuman levels, many, many strange things are possible.
Well, that's my beliefs on the matter.