Why does life require truth?

Why do humans need truth? What if we blurred the lines of fiction and fact like the Magus does? I think that our race would probably go extinct. All of nature functions on a basis of truth for survival. If we attempted to exist in a state where nothing was certain and reality was fluid, we would be unable to utilize our past to make predictions of the future. This cycle of past and future is how our universe remains in motion. Nature (four quartets, dillard, fry), ritual and tradition (four quartets, dillard, fry, eliade), birth and death (four quartets, dillard), ascent and descent (fry), myth (eliade and fry). 

Why do things have to be cyclic though? In order to learn? To develop relationships with things and with people? Couldn’t both of these be achieved in a linear state of time, perhaps even more so than before since nothing would be repeated. Maybe, but I don't believe that linearity is possible, how could we never repeat what has happened before? We would run out of imagination and ideas. We couldn't build on the past and so everything would be less than mediocre, everything would be a first draft. Our current world is based on thousands of years of revisions on original ideas. 

Even so, most of us are unable to face the full truth of reality. That's why we have these shields of religion and alcohol and the media and our own self involvement. There are two concepts of truth in Buddhism. Saṃvṛti-satya is the empirical truth, the "reality usually accepted in everyday life and can be admitted for practical purposes of communication". Paramārtha-satya is the ultimate truth, the "universal emptiness, sunyata, regarded as the true nature of the phenomenal world, which has no independent substantiality". This second truth is the one we have trouble facing. It's the size of the universe, the exposition of our flaws, the fact that we are all going to die. We throw up these shields in order to prolong our own ignorance and try and make peace with ourselves.