I oscillate between that feeling and the realization that in software, you usually stay on a layer without never really minding the numerous layers under yours, that work flawlessly despite huge complexity.

Transistors don't misfire, CPUs don't miss an operation, firmware invisibly and reliably handle all the internal packets of the motherboard, the screen refreshes millions of pixels every 16 ms. All of this relies on the work of thousands if not millions of people who have never meet each other but whose piece of work communicate flawlessly with each other.