The all-embracing vast being which is there behind the play of the universe and with which you will have to identify yourself - for this is your true self.
Yoga is a generic name for any discipline by which one attempts to pass out of the limits of one's ordinary mental consciousness into a greater spiritual consciousness.
Those who have advanced rise to the mind which is in the head, - they have the play of their mental movements in the head itself. But all these are inside the body; man is, as it were, shut up in a box, his entire consciousness is confined within the organism. This imprisonment has to be undone.
In the normal play of our mind there are all sorts of perversions; hence the need to stop all these things and inculcate right thinking, right willing - in other words, Truth must be established.
Physical education for the body to be effective must be rigorous and detailed, far sighted and methodological. This will be translated into habits. These habits should be controlled and disciplined, while remaining flexible enough to adapt themselves to circumstances and to the needs of growth and development of the being.
The progressive growth of the finite consciousness of man towards this Self, towards the universal , the eternal, the infinite, in a word his growth into spiritual consciousness by the development of his ordinary ignorant natural being into an illumined divine nature, this is for Indian thinking the significance of life and the aim of human existance.
There is the physical mind which is mechanical but the awareness which is the essential character (dharma) of the mind is also to some extent present there.
A thought is an arrow shot at the truth; it can hit a point, but not cover the whole target. But the archer is too well satisfied with his success to ask anything farther.
Nothing in the many processes of Nature, whether she deals with men or with things, comes by chance or accident or is really at the mercy of external causes.