Thanks for the reply.
No, I am not Christian and do not know if the Ark story is true or not. It does seem like many people think only in Judeo-Christian terms when trying to prove or deny the existence of something more divine than what can be seen. There are other paths.
Now, I don't have a clue how old you are but I am going to assume that perhaps you have had a parent or grandparent who has passed, someone who you loved and loved you back. Well if asked right now to prove it, how can you since that loved one is no longer around to verify it?
You don't need to prove it because you KNOW and that is your proof. God or a higher power is not something someone needs to prove to you, it is something you need to prove to yourself.
I absolutely do not believe that Christianity or any other religion (including Atheism, yes think about it) has a monopoly on God (or gods). And I believe God can be whatever you want - Jesus, the Dao, karma, Shiva, nature, your parents - whatever you feel created this world along with you in it.
In conclusion and this is only my conclusion - a person does not have to subscribe to any particular religion but without believing in something greater than themselves and hereafter, they cannot truly have morality or ethics a happenstance, you-only-live-once world.