Existence is what enables us to know that there is birth and death, that there is change and modification, etc. If existence itself is not, nothing can be. Everything is in some state or the other. Though everything is destroyed, the existence therein is not destroyed. Since existence is the general reality of everything, it must be infinite.
Existence can have no limitations, boundaries or divisions either within itself or outside itself.
Existence is indivisible and is its own explanation. Existence cannot be defined since it has no specific characteristics, and since it never becomes an object of knowledge. It is the reality of the object as well as of the subject. The body, the vital energy, the senses, the mind, the intellect and even the very condition of all these objective manifestations have as their reality this supreme Existence. The realm of the knower and the known, i.e., the entire universe in all its aspects and states, is ultimately found to be based on Existence which is imperishable.