Human brain never works on the system of a digital computer. It can never work within a previously programmed schedule or system. Human brain does not work in an algorithmic method. Algorithm is nothing else but just a definite and well constructed instruction that can solve a number of problems related with calculation. Moreover, human brain follows the mechanism of quantum theory rather than any other specific or well defined instructions. Human consciousness can never follow some well defined instruction.
The tern shadows of the mind emphasizes that human consciousness can never be limited into a formal logic. Shadows of the mind explain that classical mechanics can never analyze human brain and it temperament. It is a fact that some aspects of classical mechanism can explain a lot of activities of human brain but not the whole. Human thinking is not a formal logic or a Turing machine but human brains maintain a number of logic related with quantum theory. The works of human brain can be analyzed by quantum theory. Quantum mid can be explained as the mind of the God and all individual brains are just the part of the whole. As the energy is the supreme thing in the quantum theory which undergoes various changes just like that the mind of the god is the supreme in the universe and individual brains undergo numerous changes to make their live better. Nobody can deny that in understanding the activities of human brain and consciousness quantum theory can be used with the term of quantum wave function.