1. A therapeutic method to promote mental and physical relaxation by providing therapeutic sensory stimulus to a user, comprising the steps of: providing a therapeutic table, the table including a base having an upper end, a tabletop pivotally mounted on the upper end of the base, wherein the tabletop defines the upper support surface and consists of only a planar support surface, and at least one piston pivotally attached to the base and to the table; placing a user on the planar support surface in an unencumbered position; selectively and controllably extending and retracting the at least one piston in order to produce oscillation of the tabletop to stimulate flow of blood throughout a user's body by to inclination and declination of the user's body from the horizontal; and selectively and adjustably controlling the oscillation amplitude, oscillation frequency and oscillation period of the oscillation of the tabletop to apply motion-induced therapeutic sensory stimuli simulating gravitational free fall to the user.