What can replace religion? Culture.

I didn't realize Nietzsche already had an answer for this thing.

Culture.

Atheism can never replace religion, because atheism is only a reaction to religion and does not offer the community and common experiences that all religions can do.

Culture can do this.

But what about those who seek answers to unanswerable questions? Religion can always offer that.

The only price is to suspend disbelief.

And what about morality?

The more moral a society becomes, the more common sense is able to settle this issue.