Here is Practical Explanation about Next Life, Purpose of Human Life -

[Mudhammam]

You can avoid the creator, but you cannot say He doesn't exist. Whether or not you accept the creator's authority is your business; but you cannot say there is no creator.

For example :- there are so many outlaws who say, "We don't want to obey the government." If you don't like the government, that is your business. But there is a government -- you can't deny that.

Sure, I can. There is no creator.

See how easy that was?