It is a secret art and science of Ayurveda which works on sensitive energy points of body affecting on physical, mental, and spiritual plane. Marma is the nectar of Ayurveda, Tantra and Upanishads. Marma therapy is used for removing blocks in the strotas (channels), to bring high Vata (all 5 types) to their normal path, to create physical, emotional and mental flexibility, and to rejuvenate body. Other therapies don't address the block. They just address the physical ramification. Marma addresses the block.
Example: Marma for focus
Press the point between the two eye-brows. (6th chakra)