Taek, you sound like an intelligent man (or women?) and it has been a long time since I've had a good, hard debate about religion, so I believe I will enjoy this.

To begin:

Emotions are tangible. They consist of chemicals released into your brain. Happiness, anger, depression, all can be shown to be workings of the brain. Drugs and alcohol artifically manipulate these chemicals, causing sensations of extreme happiness (high) followed by an extreme reversal (the 'coming down').

Love? I'm going to assume you have had your own experiances with love. As such, you should know that love is usually an attempt at filling a 'missing' part of yourself. Beyond that, 'love' is usually feelings of trust, companionship, and friendship all bunched up in one. It is a natural response to human loneliness. I do not deny the existence of love. In fact, love is one of the greatest feelings in the world. It is not, however, a 'mystical' feeling without any reasonable backing behind it.

Some people need religion. Just as love, it fills a 'missing' part of them. However, as in love, it is easy to become too comfortable with your faith. In that case, people start to become blind and illogical. Have you been in a relationship where, in the back of your mind you KNOW that the relationship is not working, but you continue it anyway for the sake of it being comfortable?

And my favorate part...

What scientific proof do you have that afferms your faith?