ONLY FOR FEMALE
Tantric Massage is one small part of the wide ranging Tantric Arts. Some of the other disciplines include Tantric Yoga, Tantric Meditation, Tantric Breathing, and of course, Tantric Sex.
It is also difficult to define Tantric Massage. Since there are no real standards, every therapist may do something different. So you can never quite be sure what you are getting when you hear the term "Tantric Massage". Often it is used as a "buzz-word" for a simple sensual or sexual massage. That is not the case here.
One of the primary purposes of Tantra (and Tantric Massage) is to awaken the Kundalini. The Kundalini is a very powerful, intense and healing form of energy that (for most people) is lying dormant at the base of the spine (the sacrum). To fully awaken this powerful energy can take years of devoted practice in the various disciplines of the Tantric Arts.
Once awakened, the Kundalini will rise from its resting-place under the sacrum and move up the spine, energizing and healing, eventually re-circulating throughout the entire body. The Kundalini is known to infuse a tremendous amount of energy into a person, and has an incredible ability to heal almost any affliction, be it physical, emotional or spiritual.
The reason that the Tantric Arts are gaining such popularity in our culture recently is due to one of the more pleasurable side affects. When the Kundalini is awakened, or drawn out, it also awakens the sexual energy in the body. The Kundalini is different and distinct from the sexual energy, but the two are connected & intertwined. So as the Kundalini is awakened and drawn out of hibernation, so also is the sexual energy in the body. Along with the Kundalini, it is channeled and circulated throughout the entire body. Needless to say, this can be very pleasurable, but it is important to keep in mind that this is only a side effect, secondary to the healing power of the Kundalini.