By all means, pray. By all means, color your profile pic. But if your conscience made you feel guilty for not taking some kind of action, then no, prayer does not absolve you from that. I wouldn't go so far as to say that religion is futile, but if people out there are suffering because somebody took whatever form of his religion like his life depended on it, then keyboard Samaritans are no less guilty, pleasuring themselves with religion like it were a sex toy to reach a kind of moral orgasm, exploding with prayer like a fierce ejaculation, which for all practical purposes is a load thrown at an imaginary friend. I am not religious, but I respect religious people, not because I think highly about their religion, but because I think there is something inherently admirable for being able to believe in something a sticking to it. If the people you call terrorists are moved in religion to cause fear, then it is only right that people move in religion to take that fear away.