Too much study of the scriptures does more harm than good. The important thing is to know the essence of the scriptures. After that, what is the need of books? One should learn the essence and then dive deep in order to realize God.
The mantram becomes one's staff of life and carries one through every ordeal. Each repetition has a new meaning, carrying you nearer and nearer to God.
Enlightenment is finding that there is nothing to find. Enlightenment is to come to know that there is nowhere to go. Enlightenment is the understanding that this is all, that this is perfect, that this is it. Enlightenment is not an achievement, it is an understanding that there is nothing to achieve, nowhere to go. You are already there - you have never been away. You cannot be away from there. God has never been missed. Maybe you have forgotten, that's all. Maybe you have fallen asleep, that's all.
Only those of tranquil minds, and none else, can attain abiding joy, by realizing within their souls the Being who manifests one essence in a multiplicity of forms.