But if we desire to make the most of the opportunity that this life gives us, if we wish to respond adequately to the call we have received and to attain to the goal we have glimpsed, not merely advance a little towards it, it is essential that there should be an entire self-giving. The secret of success in Yoga is to regard it not as one of the aims to be pursued in life, but as the one and only aim, not as an important part of life, but as the whole of life.