Interreligious

Many religions today teach that heaven can only be established through their own religion. That is an unreasonable fantasy. 

Many religions say that heaven will be established through the teachings of their founder. Look at Christianity. It is divided into many denominations. They often consider a church outside of their own denomination as satanic. 

If they did this from a position authorized by God, there would be no problem. However, if they do it for their own benefit, then their motivation is not pure. 

Many kinds of religions have developed. Since people's cultural backgrounds are different, this was inevitable. There are five billion people outside the Christian cultural sphere. Do all people who do not believe in Jesus go to hell? No! Christians claim this because they do not know better. When you go to the spiritual world, you realize that Confucius and Jesus are friends. Buddha and Mohammed are friends. Famous saints of Christianity and significant monks of Buddhism are friends. A curtain is the only thing between them; they all belong to the tribe of God.