I don't remain stuck in my physical senses. I choose to use my physical senses and believe what they tell me because that is what suits me best.
I don't lose most of my existence because I deny the spirit. In fact, discounting the spirit has led to a far more fulfilling existence for me and the people around me. But that is because that type of existence suits me personally the best.
You can not see the air but you can see the effects of the air acting on other things you can see. So you already believe in the unseen. You trust that a picture from the Hubble telescope actually is showing you some distant object. Your senses can not see distant objects yet you believe. It is no different with me. I see the effects of God all over the place. To me it is obvious that there is a God and I know Him today because I believed. You do not believe because you choose not to see. Your eyes see everything my eyes see yet you do not see.
15Then shall it be for a man to burn: for he will take thereof, and warm himself; yea, he kindleth it, and baketh bread; yea, he maketh a god, and worshippeth it; he maketh it a graven image, and falleth down thereto.
16He burneth part thereof in the fire; with part thereof he eateth flesh; he roasteth roast, and is satisfied: yea, he warmeth himself, and saith, Aha, I am warm, I have seen the fire:
17And the residue thereof he maketh a god, even his graven image: he falleth down unto it, and worshippeth it, and prayeth unto it, and saith, Deliver me; for thou art my god.
18They have not known nor understood: for he hath shut their eyes, that they cannot see; and their hearts, that they cannot understand.
19And none considereth in his heart, neither is there knowledge nor understanding to say, I have burned part of it in the fire; yea, also I have baked bread upon the coals thereof; I have roasted flesh, and eaten it: and shall I make the residue thereof an abomination? shall I fall down to the stock of a tree?
Such is the way of the world. Find something in the creation and worship before it.