If it be true that spirit is involved in Matter and apparent Nature is secret God, then the manifestation in the divine in himself and the realization of God within and without are the highest and most legitimate aim possible to man on earth.
There should of course be left a field of work for the sake of experiment but at all times one must remember that there will always remain open a possibility of err.
But what after all, behind appearances, is this seeming mystery? We can see that it is the Consciousness which had lost itself returning again to itself, emerging out of its giant self-forgetfulness, slowly, painfully, as a Life that is would be sentient, half-sentient, dimly sentient, wholly sentient and finally struggles to be more than sentient, to be again divinely selfconscious, free, infinite, immortal.
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.
The first and the most important thing is to know that life is one and immortal. Only the forms, countless in number, are transient and brittle. The life everlasting is independent of any form but manifests itself in all forms. Life then does not die... but the forms are dissolved.
What comes from outside, one mistakes it as coming from inside. So many thoughts etc. move about outside in the universal - these manifest inside you. All these you must push away as foreign to you and the inside must be made peaceful, calm and quiet; then it will start descending from above.
The Atheist is God playing at hide and seek with Himself; but is the Theist any other? Well, perhaps; for he has seen the shadow of God and clutched at it.
There are four great events in history, the siege of Troy, the life and crucifixion of Christ, the exile of Krishna in Brindaban and the colloquy on the field of Kurukshetra. The siege of Troy created Hellas, the exile in Brindaban created devotional religion, (for before there was only meditation and worship), Christ from his cross humanized Europe, the colloquy at Kurukshetra will yet liberate humanity.
The most vital issue of the age is whether the future progress of humanity is to be governed by the modern economic and materialistic mind of the West or by a nobler pragmatism guided, uplifted and enlightened by spiritual culture and knowledge.