Samkirtan is singing the Glory of God. It is the process of singing that originates in the heart… not from the lips or the tongue. It is the expression of the joyous thrill that wells up from the heart when the Glory of God is remembered. It is the spontaneous manifestation of the inner ecstasy. No attention is paid to the blame or praise that others may give. It does not seek the admiration or the appreciation of the listeners. It is sung for one's own joy, one's own satisfaction, for one's own delight. That type of singing alone is supreme.
Sri Sathya Sai Baba, Divine Discourse, Nov 14, 1976