Is this a good essay?

Your opening sentence isn't very good. "Cults are everywhere." You need to capture the reader's interest, so try starting with a different line. There are a few small grammar mistakes, such as speaking in plural and then switching to singular (line 9 should say Religious cults ARE instead of IS) or the opposite Correct these minor grammar mistakes and it could be quite good. Also, you need a conclusion. Right now it ends in the middle of a paragraph, basically.