Let every man abide in the calling wherein he is called and his work will be as sacred as the work of the ministry. It is not what a man does that determines whether his work is sacred or secular, it is why he does it.
You can't possibly ask me to go without having some dinner. It's absurd. I never go without my dinner. No one ever does, except vegetarians and people like that.
Muhammad has always been standing higher than the Christianity. He does not consider god as a human being and never makes himself equal to God. Muslims worship nothing except God and Muhammad is his Messenger. There is no any mystery and secret in it.