Tsongkhapa's commentary entitled A Book of Three Inspirations: A Treatise on the Stages of Training in the Profound Path of Naro's Six Dharmas commonly referred to as The Three Inspirations.

Anyone who has read more than a few books on Tibetan Buddhism will have encountered references to the Six Yogas of Naropa, a preeminent yogic technology system. The six practices -- inner heat, illusory body, clear light, consciousness transference, forceful projection and bardo yoga -- gradually came to pervade thousands of monasteries, nunneries, and hermitages throughout Central Asia over the past five and a half centuries.

שם הספר
The Practice of the Six Yogas of Naropa