Ancient contemplative traditions offer sophisticated technologies for cultivating stable states of consciousness underlying sustainable well-being. This integrative review synthesizes empirical and theoretical literature on Patañjali’s Sanyam—the integrated practice of Dharana (concentration), Dhyana (meditative absorption), and Samadhi (non-dual awareness)—and its Zen parallel, Joriki (concentration power), with contemporary research on consciousness neuroscience, hypnosis, transpersonal psychology, and happiness science. Drawing on 187 peer-reviewed studies, this paper establishes a framework linking these practices to Fundamental Peace: a primordial, non-reactive ground state of inner stillness and clarity from which authentic happiness and flourishing emerge. Convergent evidence demonstrates that Sanyam and Joriki cultivate ekagrata (one-pointedness), producing measurable changes in brain activity, autonomic regulation, and phenomenological experience. These practices share structural parallels with clinical hypnosis and facilitate access to non-ordinary states characterized by reduced default mode network activity and dissolution of subject-object duality. Implications for transpersonal psychology, clinical practice, and global happiness initiatives are discussed.