For the great mystics, the mantram has taken root and become established in their consciousness; the holy name echoes continuously in the depths of the heart. In sickness and in health, in favorable circumstances and in times of turmoil, the mantram continues to fill the heart and mind.
Easwaran argues that the mantram’s ultimate function is to become an autonomous, continuous presence in deep consciousness — the experiential criterion of God-consciousness — rather than a deliberately initiated act.
, The Bhagavad Gita for Daily Living: A Verse-by-Verse Commentary, 1975thesis