When the mind moves even a little, that is samsara (worldly bondage); when the mind abides firmly and motionlessly (in the state of Self), that is mukti (liberation). This is certain. Therefore know that the wise man must hold his mind firm by supreme Self-awareness.
~ Devikalottara

This work [Devikalottara] is one of the upa-agamas and explains the supreme wisdom to be attained by mature souls and their mode of life, expounded by the Supreme Lord Siva to Devi Parvati. It is the essence of all Agama Sastras on matters of spiritual knowledge. This is verily the boat which can rescue the mortals struggling hard, sinking and rising, in the sorrowful ocean of samsara of endless cycles of births and deaths and take them by the direct path to the shore of liberation. Let all earnest seekers after Truth, instead of groping in the dark, bewildered, and losing their way, adopt the help of this straight path and reach the supreme state to bliss and peace.
~ Sri Ramana Maharshi