This is by no means to claim that Heraclitus was some sort of proto-computationalist about the mind. That would be the worst sort of anachronism. It is only meant to show that some of the problems addressed by Heraclitus are still with us today. To understand Heraclitus' view of the psyche , it is perhaps best to begin by simply presenting what he is held to have said with respect to it. For psyches it is death to become water, and for water death to become earth.
Water comes into existence out of earth, and psyche out of water.
We live their death and they live our death. It is difficult to fight thumos , for whatever it wishes it buys at the price of psyche . Psyche possesses a logos which increases itself. A dry psyche is wisest and best. This would imply that, if psyches were thought to be made of one of the basic elements, they are likely made of fire.