"On Certainty" is good for feeling uncertain

Either there exists no physical object (that can be proven) or physicality is what it seems. A mistranslation of the senses seems inefficient as an animal -- we must perceive what exists as it exists. So our sensory sensation is explicitly related to a moment in time because it confirms not only our existence, but the existence of what or who we experience. Which is related to desire, confirmation (certainty), and hunting. The physical sensation of consummation may be necessary to believing, convincing the mind, that we are our bodies.