Yoga is a means of acquiring stillness of mind, and steadiness of purpose. You need not practice many postures. Just pick one, and master it. If you get bored with one, pick a few that suit your temperament. Master them. It is the discipline that yields the fruit, not so much the posture. Watch how long can you retain a single posture, any posture, without moving or glancing sideways. You can just sit cross-legged with a straight spine, and stare into blank space, at the tip of your nose, at the third eye in between the eyebrows or on a candle. This “just sitting” is an important first step. Remember, it is not the object of attention that matters, but attention itself. The means of acquiring unwavering attention is practice, just like with anything else. Consider what you need this attention for. You can use it for anything you want to manifest — success at work, joy in a relationship, or achievement of an ambition. Yet, the true purpose of Yoga is to collect attention in order to realize our unity with the indivisible cosmic principle. This is the highest goal. Like a bath is for cleansing of the body, Yoga is for the purification of the soul.