Who is right when it comes to religions about spirituality and the spirit world? [Spirituality & Religion]

I only believe in Christianity because I had a vision of the cross when I was redeemed and it has explained ALL of my spiritual experiences almost to a T.......BUT I had a talk with a Native who goes to sweat lodges and he said that he can feel the hand of a spirit on his shoulder too just like me, to him its a spirit to me its the hand of the Lord.....I am not all too familiar with what it says about the spirit world in the Islamic religion, or even Buddists....Except that they too also see a great light which Christians believe is Jesus in spirit form......Are all of these religions trying to do their best to explaine the spirit world? Which one is closest to the truth?