The name al-Qayyūm also has much the same meaning as the Hebrew phrase in Exodus 3:14 which is written as:
and which is often translated as I am that I am, or I am that which I have become.
As Sri Aurobindo wrote in his commentary of the Isha Upanishad:
God is the only Being and all other existences are only His becomings.
Sample application is the du’a for one in dire distress:
Bismillahi Babuna (The Name of Allah is our Door)
Click on above for the source article