It's taken me a long time to learn that motivation isn't an external source of inspiration.
It's an inner quiet you have to practice listening to.
People get unmotivated when they expect to always be filled with "motivation."
We talk about motivation like it's this fiery, relentless, never-ending source of rampaging drive that is as addictive as any drug, as warm as any love, and as uncontrollable and brilliant as any creator that has come before us.
We think it's supposed to never end, and when it does, we suddenly wonder and feel very confused as to why we are "unmotivated."