Even in intake, the one steadfast thought is said to be the natural state. Nirvikalpa Samadhi will result when the sensory objects are not present.
Ramana MaharshiWhen the mind, one-pointed and fully focused, knows the supreme silence in the Heart, this is true learning.
Ramana MaharshiPure Consciousness, which is the Heart, includes all, and nothing is outside or apart from it. That is the ultimate Truth.
Ramana Maharshi