The theoretical basis of Thai massage is the existence of the "energy body," which includes 72,000 "sen" or energy lines. In Thai massage we address the ten main sen using pressure on specific points along these lines, compressions and stretches, releasing blockages to restore the free flow of life energy. Thai massage is sometimes referred to as "Yoga for lazy people" because of the similarity to the ancient Indian discipline of some of the stretches that the practitioner "does" to the client.