This vigilance of attention may be what Jesus meant when, in the garden of Gethsemane, he said to Peter, "Watch and pray, that ye enter not into temptation." It is the core of traditional spiritual training and practice, from the repetition of the Prayer of Jesus of the early Christian monks -- "Lord Jesus Christ, Son of God, have mercy on me!" — to the whirling of the Mevlevi Sufi dervishes, from Hindu yogi exercises in one-pointed concentration to the mindfulness meditation of Buddhists.
— Tracy Cochran, Jeff Zaleski, Transformation