5579 "Sustenance" here, as elsewhere, (e.g., in
16:73, n. 2105), refers to all that is necessary to sustain and develop life in all its phases, spiritual and mental, as well as physical. Allah Most Gracious is the Source of all our Sustenance, and if we persist in looking to Vanities for our Sustenance, we are pursuing a mirage, and, if we examine the matter, we are only following obstinate impulses of rebellion and impiety.