When someone utters a word that reaches your ear, the sound gets broken down into component waves via Fourier transform which vibrate within cochlear fluid and cause the movement of mechanoreceptor hair cells at the organ of Corti to produce electrochemical signals in the form of neurotransmitter release whereby the movement of the fluid stimulates the filaments of individual cells receptor cells to become open to receive the potassium-rich endolymph, causing the cell to produce an action potential which is transmitted through the spiral ganglion to the auditory portion of the vestibulo-cochlear nerve to the the brain, which signals to the cortex with new information that is then compared to predictions based on prior experience in a Bayesian fashion to produce the phenomenology of the experience of hearing, interpreting, and understanding the word. But where (and how), in all this, does the phenomenology of meaning arise?
In the twentieth century, Jean-Paul Sartre famously said that existence precedes essence, which is the reverse order of what the Medieval philosophers believed. In this line of thinking, a thing first exists, and then due to its form of existing, it has essence bestowed upon it by observers. This is where the Existentialist idea of radical freedom came from. In the Medieval philosophy, you were your essence first, and it was God that bestowed upon you your existence. But that means your essence is immutable. In Existentialism, it is you that creates your essence to be what you want, and your essence is only determined by what you do, not by your intentions. What this idea ultimately concludes is that there is nothing special about an existing object apart from the meaning given to it by minds, or being-for-itself in Sartre’s parlance, denoting the objectness of the mind. But if the mind is an object, then what is it about the mind that makes it special, allowed to bestow meaning on the objects around it?
In this section I discuss why materialism offers only an incomplete explanation for consciousness.
Cartesian dualism has been a point of contention in philosophy since at least, well, Descartes. The dispute is whether the mind is a separate, immaterial entity from the physical body. Problems have plagued the dualist view since the time of Descartes, primarily how it is that the immaterial mind and material body interact.