Jovaro, the reason I think ALL religions exist has nothing to do with man's curiosity, but with his knowledge that something is wrong with himself. Every single religion and most philosophical systems try to offer man a way out of this fix. If you do this, you will be better. If you join that you will be better. If you say these words, participate in that ritual, get this learning, or even that plastic surgery, you will not be the miserable mess you actually are.
And every single religion and quasi-religious system puts the burden on man to improve himself. This or that he must do, say, think, be....
Except one. Its fulfilment is in Christianity, but its promise and reality have existed for all of man's history. It existed before Judaism. Call it the religion of God's Promise, if you like, for from the moment man fell into sin, God promised to save men Himself. He would take the burden that men couldn't carry -- that of changing a man from the inside out.
But not if you don't want it. Jesus said, "Come unto me all ye that labor and are heavy-laden, and I will give you rest..." It was not physical labor he was talking about, for Christian, Jew, or otherwise, we all have to continue working -- sometimes very hard for very little. The burden He was talking about was far deeper -- the spiritual burden of trying to improve, exalt, save oneself (depending on which religious system's verbiage you are using).
Only God can do what needs to be done for man. Only God has done what needs to be done for man. He did it out of a love we cannot begin to fathom.
All the curiosity/knowledge stuff comes far second where religion is concerned. The actual state of ourselves is the reason men from every nation, culture, and time have struggled with their religious systems, inventing new things to do, new rules to follow, new rites to participate in.
None of that is necessary. God's Promise was fulfilled in Jesus, justice satisfied on the Cross, and death itself conquered in the Resurrection. In Christ we are free from all the garbage man's 'religions' have piled upon us. He changes us. We are new in Him.
Christ stated that HE is the way, the truth, and the life. He was, in making that statement, Lord, lunatic, or liar.
Which do you choose?