The capacity to function as a living human is certainly from a specific force/nature/power. Now what kinds of forces/natures/powers are there in life/existence? You should know of Good and evil. Comparing the two, Good is definitely superior to evil because the known world around surely has an intelligent and organized design; these are qualities that are under the category of goodness.
Keeping the previously given information in mind, the next issue to consider is what other types of beings are available in life/existence. The dictionary contains an example such as God or Deity as a type of being and not just humans. It is known that humans have died since the conception of time, but notice that the world always remains despite all the deaths. What force/nature/power keeps the world around? Is it Good or evil?
Now imagine if evil desires to kill Good (that is: make Good die), it simply wouldn’t be possible because an inferior force/nature/power can NEVER overcome a superior one. The world remains a constant (that is: alive) because it operates via a superior force/nature/power associated with a God or Deity, but basic humans die.
The obvious deduction here is that humans die because they simply do not have the power to defeat death. Now what about a Deity or God who created the world with an intelligent and organized design? Immortal. In conclusion to all I’ve explained, ask yourself whether humans are Good or evil.