As a guiding principle, to progressively realize what is not absolutely True is of infinitely more value than speculating about what is. Many people think that it is the function of a spiritual teaching to provide answer's to life's biggest questions, but actually the opposite is true. The primary task of any good spiritual teaching is not to provide answer's to your questions, but to question your answers.
In our modern society we expect to have everything given to us in easy-to-consume bite-size portions, preferably very quickly so that we can get on with our hurried lives. But Truth will not conform itself to our frantic avoidance of Reality or our desire to have the whole of something for the very least investment of time and energy.
Summary of the Teaching
Question every thought.
Contemplate the source of Reality.
And keep your eyes open. You never know when something that seems entirely insignificant will split your whole world wide open into eternal delight.