From a recent interview with Arvo Pärt:
Searching for a solution that would connect his emotional, musical and spiritual lives together, Pärt, at a loss for inspiration, went outside into the snow one morning and asked the cleaner: “What should a composer do?” “Well, he should love every note,” was the reply. “No professor had ever told me something like that,” Pärt said, and this single sentence crystallised his thinking. He realised that to really love every note, to really understand the connections between even a tiny handful of musical pitches, could be the source of lifetime of composition and contemplation.
For me, that completely summarizes the goal, and the process. Click here to read the rest of the excellent interview.