Never think there is anything impossible for the soul. It is the greatest heresy to think so. If there is sin, this is the only sin; to say that you are weak, or others are weak.
If religion and life depend upon books or upon the existence of any prophet whatsoever, then perish all religion and books! Religion is in us. No books or teachers can do more than help us to find it, and even without them we can get all truth within. You have gratitude for books and teachers without bondage to them; and worship your Guru as God, but do not obey him blindly; love him all you will, but think for yourself. No blind belief can save you, work out your own salvation. Have only one idea of God - that He is an eternal help.
What is the idea of God in heaven? Materialism. The Vedantic idea is the infinite principle of God embodied in every one of us. God sitting up on a cloud! Think of the utter blasphemy of it! It is materialism - downright materialism. When babies think this way, it may be all right, but when grown - up men try to teach such things, it is downright disgusting - that is what it is. It is all matter, all body idea, the gross idea, the sense idea. Every bit of it is clay and nothing but clay. Is that religion?
God is very merciful to those whom He sees struggling heart and soul for spiritual realization. But remain idle, without any struggle, and you will see that His grace will never come.
Everything progresses in waves. The march of civilization, the progression of worlds, is in waves. All human activities likewise progress in waves - art, literature, science, religion.