You've heard of continental drift, I'm sure. How as the earth formed and reshaped itself, the continents moved closer together, then farther apart, back again? Still do? Not a scientifically accurate explanation*, but that's not the point. The point is WE drift too.
It is the rare human being (writer) who doesn't suddenly find herself in a different landscape far from the one where she wanted to be. Sometimes the new island, mountain top, whatever, is pretty damn pleasant and for a moment, when she realizes where she is, she thinks maybe she'll stay.
After all, the place she used to be is a bare speck on the horizon. From where she sits now, that speck seems rugged and untamed, jungle-like, and a good rowing distance away. A hard row. And she's never learned to sail, can't crank an outboard. For her it's strong arms, back, and legs all pulling together or nothing. And that's soooo much work. Easier to stay put in this new place...
But no. Can't do that. Gotta get out the row boat, patch the leaks, and get rowing. And next time when playing in the vast sea becomes a temptation, she's gotta point the prow straight back to the jungle, and pull it up into the sand.
*I googled "continental drift": In 1915, the German geologist and meteorologist Alfred Wegener first proposed the theory of continental drift, which states that parts of the Earth's crust slowly drift atop a liquid core. The fossil record supports and gives credence to the theories of continental drift and plate tectonics.