Tag sleep

Our unconscious is always awake to stmulii.We can hear/feel even during deep sleep.
Inthe Epic Mahabharata, Lord Krishna instructs his disciple and sister's husband on a specific war strategy(Chakra Vyuha, a method of organizing armies in the battle field )At that time Krishna's sister was pregnant with the child.
The child, when he became a young man, could vividly remember the details heard when he was in his mother's womb, in the battle field.