People always question why there is so much suffering and pain in the world. It's all because of ignorance, because people refuse to accept those different from then, and thus through ignorance we lose compassion. Without compassion there is nothing but emptiness and pain. Through pain people look for away out any way they can. They use greed, pride, religion, sex, or even suicide to merely name a few.
Some would say we should fight ignorance, but you can't. You can't, because of fear. Fear and ignorance are merely symbiotic, as one grows so to does the other. Fear, our lives are practically controlled by it.