I used to study in Singapore for four years and started dating one Malay muslim. I was buddhist who believed in Hindu gods and totally kept in the dark about Islam. When I met her parents, they told me, Islam is very stricted, you may have to consider to convert for me to have full trust on you. I replied, I know Islam only by their surface,I dont mind to have your daughter teach me.
She started preaching me about islam, show me a copy of Quran and the tradition of it. I would not say I was fully converted to islam but rather I was learning it.
My girlfriend suddenly ask me, you may have to consider converting to Islam as soon as possible. I gather all the information I have learned for a year and realised it was really similar to communism where people who has power can force anyone to do whatever they want. I soon told her about my realisation and she went blood boiled. I started to point out things and how life is already beautiful in the way nature and evolution has became. How hell is fear and heaven is greed. People who worked sweats and tears will have whatever the poors prayed for. Why do you want to collect points (sin/good deeds) for a future reward (heaven) before the promotion ends (judgement day) when you can just work hard for that reward.
After a year, I lost faith in my Hindu god and she lost her faith in her Allah but we strongly believe in karmar. The best punishment is what goes around comes around. Whatever you did to people, people will do it on you and you will feel the pain as much as you did to them.