The enquiry “Who am I?” is the principal means to the removal of all misery and the attainment of the supreme bliss. When in this manner the mind becomes quiescent in its own state, Self-experience arises of its own accord, without any hindrance. Thereafter sensory pleasures and pains will not affect the mind. All (phenomena) will appear then, without attachment, like a dream. Never forgetting one’s plenary Self-experience is real bhakti (devotion), yoga (mind-control), jnana (knowledge) and all other austerities. Thus say the sages.
-from 'Self-Enquiry' ('VICHARASANGRAHAM'), Q&A No. 12