This state of 'no-mind' exists, as it were, on a knife-edge between the carelessness of the average sensual man and the strained over-eagerness of the zealot for salvation. To achieve it, one must walk delicately and, to maintain it, must learn to combine the most intense alertness with a tranquil and self-denying passivity, the most indomitable determination with a perfect submission to the leadings of the spirit.