Devotee: What is that Self in actual experience?
Bhagavan: It is the Light which ever shines in the Cave of the Heart as the flame of the Consciousness ‘I’ ‘I’ — the eternal and
blissful Sat-chit-ananda.
This is the answer to the vichara and its
fulfillment. The ‘I’, which has carried out a determined and protracted search into its own nature, has at long last found itself to be not other than the Pure Mind, the immaculate Being, which is eternally wrapped in blissful stillness.
This is Turiya, the Fourth, or Samadhi (the highest stage).
– Guru Ramana by S.S. Cohen.