What does it give you?
A sense of belonging, especially for the lonely.
A sense of justice in the future for those who are oppressed.
A sense of superiority for those who believe that they alone 'know the truth'.
A friend for the friendless.
Someone to talk to for those who have no-one else.
A supposed code of morality for those who need it.
Buildings, music, literature and a sense of history.
Comfort.
A sense that whatever you do, it is sanctioned or justified by your god and is therefore 'right'.
None of it is logical or reasonable, of course, but one can see how a religion (any religion) which offers all this and more could survive and prosper. All one needs to do is to surrender disbelief and critical thinking.
I suppose that my list of points above could apply to any religion and maybe that's why so many religions survive.