A cup is useful only when it is empty; and a mind that is filled with beliefs, with dogmas, with assertions, with quotations is really an uncreative mind.
The real enemy of happiness is the mind's fixations and delusions... If you have the right mind, you can overcome anything - you can be happy, no matter what.
The senses collect the surface facts of matter... It was sensation; when memory came, it was experience; when mind acted, it was knowledge; when mind acted on it as knowledge, it was thought.
Make your meditation a continuous state of mind. A great worship is going on all the time, so nothing should be neglected or excluded from your constant meditative awareness.