It is, by contrast, absolute brilliance and absolutely fulfilling when you discover how to find your limits and safely, gently, begin to expand them. The reason yoga produces such profound states of well-being is that it substitutes for the kinds of activities our bodies and minds are naturally designed for. No other creatures except us attempt to hold our spines upright constantly. If walking on two legs wasn't bad enough, we sit in chairs, wear restrictive clothing and tight shoes. Freeing yourself regularly from this confinement by practicing yoga will predictably give most people a heightened sense of well-being.
Some people think it is divine.
Others find it positively addicting and a powerfully effective substitute for negative habits. Whether borne of inspiration, or by trial and error, yoga techniques substitute for the kinds of activities our pre- and early human ancestors must have done in the course of just living out their arboreal lives. Obviously it takes time for your body to tuck itself in here and fill out there. This is why it is important to drink lots of water and eat ample amounts of wholesome food in conjunction with regular moderate practice. In challenging those muscles to remodel themselves, you are literally clearing out lots of junk from your tissues.