Manifestation is actually pretty simple when you break it down.
What you believe will happen for your life, is what you will manifest.
A belief is simply a thought that you keep thinking, over and over and over again.
So, what you think about enough to become a belief, points directly to what you will manifest.
As one of my favorite authors, Mike Dooley, often says: thoughts become things.
That is manifestation in a nutshell.