Q. What is the state of dreamless slumber?
A. That in which there is an utter absence of the perception of objects.
The indwelling of the notion of "I" in the gross body during wakefulness is visva (world of objects),* in subtile body during dreaming is taijas (magnetic fire), and in the causal body during dreamless slumber is prajna (One Life).
Q. What are the five sheaths?
A. Annamaya, Pranamaya, Manomaya, Vjjnanamaya, and Anandamaya.
Annamaya is related to anna** (food), Pranamaya of prana (life),
Manomaya of manas, Vijnanamaya of vijnana (finite perception),
Anandamaya of ananda (illusive bliss).
———- * That is to say, by mistaking the gross body for self, the consciousness of external objects is produced.
** This word also means the earth in Sanskrit. ———-
Q. What is the Annamaya sheath?
A. The gross body.