As of now I am looking at my hand...?

yet, is this really my hand, or a conception of my hand within my mind, or is that the image of my hand created by my defective optical organ, or even, an image of what God/the Devil wants me to think what my hands look like, and has made me see like? Or maybe, the hand exist, but what I am seeing as the 'hand' is not really my hand, but what I think (or either God or the Devil deceives me to think) my hand should look like- indeed, am I really seeing this hand or imagining a certain hand and thinking it is mine? Maybe God is punishing me for using this hand wrongly so he makes me see a different hand to freak me out of my sinning, but I haven't noticed yet because the devil wants me to sin, and so makes me think that this is my hand. Likewise, even if my hands were real, is it connected to my body or is it being connected- is the connection to my hand an intrinsic and defined by the connection or is the connection something incidental? Or does that connection exist? Or maybe, as a part serves the whole, my body is a part of my hand in so far as all work to serve it- my legs transport it, my mouth nourishes it, &c.? Additionally, is there certain movement of my hands innate or is it learned?