The word "yoga" comes from the Sanskrit root "yūj," which means to connect or combine. The goal of all varieties of yoga is to reunite a person, that is, finite with infinite, with cosmic consciousness, truth, god, light, or any other name that can be called final and eternal given. Yoga, as they say in India, is the marital union of spirit and matter. The author's position, weighed on the scales of difficult personal experience, devoid of any fanatical extremism, determining a reasonable synthesis of physical, mental and spiritual development, is of interest to a wide range of readers.