The Fear of Death and Its Influence on Human Models
The lie that exalts us is dearer than a thousand sober truths. (Alexander Pushkin)
The fear that death marks the terminus of individual existence has given rise to a wide range of ideationally inconsistent models. One of the most enduring of these is the belief that humans are a separate creation from the rest of life. This belief is particularly persuasive because it is easy to accept that organisms like fish, grass, and bacteria do not proceed to some form of new life after death, while humans might.
This fear is especially prevalent in models of mind and consciousness that align with older concepts such as the soul and spirit. On one hand, mind and consciousness are often invoked to demarcate a line between humans and other species. On the other hand, by modelling these phenomena as things or substances, it becomes possible to argue that they are composed of an immaterial substance that is not subject to material death.
The depth of this fear is understandable. Organisms with a strong value for self-preservation are more likely to survive and reproduce than those without such a drive. Natural selection favours genes whose expression contributes to this fundamental value, and this drive for self-preservation has been a powerful selector of the types of models of humanity that have evolved, from prehistoric times to the present day.