Most of the answers to your questions are covered in this thread.
The first post has an 'index' of topics and answers.
• The hidden harmony is found with joy, while the obvious brings indifference.
• The farther you enter into the Truth the deeper your conviction for truth must be.
• There is understanding of the world precisely to the degree that there is understanding of the Self.
Collected Works of the WingMakers Volume 1 pg. 590