Cults?

Rebecca-da-wrecker • 🌈 👶 due June 2019 😍 with my little princess 💗👸

So I was looking for peoples opinions on cults? Do you think they are a part of religion? Do you think some were originally set up with good purposes and morals? Or is it brainwashing and potentially dangerous?

Bonus question- has anyone ever been involved in a cult or knows a relative that has?