indwelling

/IH1 N D W EH1 L IH0 NG/
noun
  1. 1

    A dwelling within, especially lodgement or habitation in the mind or soul.

adjective
  1. 1

    Implanted within the body

  2. 2

    Existing as an inner principle; inherent

Source: https://en.wiktionary.org/wiki/indwelling