Here comes a short definition of Sat Chit Ananda from Roberto Assagioli:
There is a very fine phrase, you know, Sanskrit, which brings this clearly: Sat chit ananda.
Sat is truth; the ultimate reality. The universal, the transcendent. Chit is mental awareness
of it. And the result is ananda, bliss. You cannot have bliss if you ar not aware of it.
So remember and use it for yourselves, Sat, Chit, Ananda. Blissful awareness of reality.
But awareness; self-conscious awareness. That disposes of all those fears of losing
oneself in the whole and the drop in the sea and all that. These are quite misleading
expressions. In my forthcoming book I deal much more with this, of the fusion of individual
and universal consciousness. [From Talks on the Self]