" He must turn to something solid, because if he didn't, who knew where his mind or his soul could blow away to, like a balloon without ballast.... He raised the binoculars and scoured the island for more signs of life: he needed to see the goats, the sheep; to count them. Stick to the solid. To the brass fittings which had to be polished, the glass which had to be cleaned—first the outer glass of the lantern, then the prisms themselves. Getting the oil in, keeping the cogs moving smoothly, topping up the mercury to let the light glide. He gripped each thought like the rung of a ladder by which to haul himself back to the knowable; back to this life. "

― M.L. Stedman , The Light Between Oceans