self-existence

noun2

1. •
   inherent existence; existence by virtue of a being's own nature, and independent of any other being or cause

   • self-existence is an attribute of God
2. •
   self-sufficiency

   • Wasting and spoiling with a ruffian hand,/While her accomplice faith, wrapt up at home/In proud security of self-existence,/Thinks that existence shall absolve them both? — 1781