What does it mean when it is said that " Every contradiction is impossible"?.

The principle of impossibility of contradiction categorically claims that every contradiction is impossible. In this study it is attempted to analyze concepts such as “Contradiction” and “No-contradiction” and the relations between these two concepts with man’s cognition and understanding. This study attempts to state that the above claims could at most mean that the present humans beings cannot justify “contradiction”. If this interpretation is valid, it might mean that the principle of the impossibility of “contradiction” cannot have valid proofs for itself. It is possible, therefore, to speak about the possibility of contradiction at least in paradoxical situations.