When we experience a hint of luxury more often than not we will make a bid for sustenance. But once we fail, we start yearning instead, for sustenance. We've sustained the want/need to sustain, not the ability to, sustain. And then the option of giving up what we could live without pops, only but up. We learn to yield. We have at times, wrongfully, yet inevitably, sustained yielding.

Reality slaps hard, in the face.
And yet we can, but only, sustain yielding.