There is only one Being who is not dependent upon anything, namely, God. This attribute is called ‘aseity’ and has profound implications for how we perceive God, ourselves, and the universe.

Parmenides: ‘Out of nothing, nothing comes’ (ex nihilo nihil fit).

If interested, check out R.C. Sproul speaking on Aseity on the Ligonier Ministries website (the best bit starts about 28 minutes into the audio).