It is said that when he was a young man the great Zen master Hakuin Ekaku trained so vigorously he suffered a near energetic and spiritual collapse. In desperation he turned to his Taoist teacher who gave him this “Soft Butter Meditation”, which cured all his ills. Hakuin later extolled this particular meditation, observing “With diligent practice, there is no virtue that cannot be attained, no spiritual level that cannot be mastered.”