I believe in God for several reasons. The first reason is that I often had moments in my life when, after turning to God, something in life changed for the better. And the second reason is that such a miracle as life, only God could come up with.
Which god though? Every religious person will say the same thing about their god. You see, that's not a good way to discover the truth. I turned to god and prayed and my life was still bad, does that mean god doesn't exist? Why is life a ''miracle'' ?
There is only one God, creator of Heaven and earth, whole universe.
He is our universal Parent, origin of our life and love.
Because of many different cultures, traditions etc. we have different understanding about God but God is unique and the same for Christians, Muslim, Jews, Buddhists etc.
It's not easy to connect with GOd because we are fallen and separated from Him, his love but it's worth to try because reward is eternal!