Yoga is one of the first methods of improvement and self-knowledge distilled by the human being. It has a long history, from its origins (several millennia ago) to the present day, with thousands of people practicing it all over the world.

With an experience of more than sixty years in the practice and study of yoga, Ramiro Calle synthesizes the different yoga traditions – from Patañjali or Samkhya philosophy, through tantric or Shivaist yogas, such as hatha, kundalini or mantra -yoga, even the dubious sports techniques that today are sold as "yoga" in many centers or gyms- to urge us to recover the deepest spiritual teachings of India.