This quote is saying that Marilyn Manson is living in a paradox, or a state of conflicting ideas. He is using hair spray (a kind of aerosol can) outside to try to make the sun burn a hole in the Earth – a seemingly impossible and ridiculous concept. But, at the same time, he is hoping that people will evolve and become smarter. This is in contradiction to trying to harm the Earth, but he believes that if people evolve and get smarter, then a more positive outcome for the planet can be achieved.