What is Subsisting?

Subsisting definition and meaning on Dictionary terms:
verb (used without object)
to exist; continue in existence.
to remain alive; live, as on food, resources, etc.
to have existence in, or by reason of, something.
to reside, lie, or consist (usually followed by in).
Philosophy. to have timeless or abstract existence, as a number, relation, have existence, especially independent existence.

verb (used with object)
to provide sustenance or support for; maintain.