My Moral/Philosophical Debate

This is a debate I had on a science forum. It is regarding my theory that could change how we all think as human beings. Many people say that we can have love, joy, happiness, inspiration, and good meaning in our lives through our way of thinking alone even while we are in a severely crippled depressed mood. But I ask you. How the hell is that love, joy, happiness, inspiration, and good meaning? This makes no sense to me. It would only make sense to say that our good moods (pleasant feelings/emotions) that give us those said things mentioned. Now here is the link below to this entire debate I had. Go ahead and read it all and give me your detailed feedback:

mediafire.com/view/bpe7dfly3 … Theory.rtf

Precisely what do you believe causes that “depressed mood”?