In the natural, we do have to go by our senses-faith in your sight, faith in your smell or faith in your feelings that's why if you crossing the street and your eyes tell you there are cars coming, you need to have enough sense to wait for the cars to pass before you proceed to cross the street.
But you see, many people are trying to believe God with their physical senses or with natural human faith and if their physical senses tell them their prayers hasn't been answered, then they believe their physical senses instead of the word of God. But what do your physical senses have to do with the bible? God's word is so whether it looks like it is so or not. God's word is true regardless of your feelings. No matter the circumstance, God's word is true.
A great Preacher, Smith Wigglesworth said "i can't understand God by feelings, I can't understand the Lord Jesus Christ by feelings. I can understand God the Father and Jesus Christ by what the word says about them. God is everything the word said."
We can only get acquainted with the Lord Jesus Christ through meditation on the word.
As you study the word, your heart is enlarged to recieve all that God has in store for you, eventually your mind will be renewed with the word and light will come to you.