The soul is defined and denied in many ways. It is defined as spirit. It is explained as the immaterial essence of a being or as the core or character of a thing. It is denied as non existent because it cannot be measured or seen or because it only survives as long as the body it inhabits survives.
Believers think the soul is eternal. Some believe it is reincarnated time and time again until it becomes part of an absolute called God. Others think a soul can inhabit an atom. Many believe the soul can be saved or damned. Skeptics think it is an erroneous concept held by mankind.
Perhaps the soul is more than all it is alleged to be. Perhaps it is less. If it more, than it can arise in anything that exists, living or not. If it is less, than perhaps it is the greatness of nothing.