My personal trainer at the gym keeps telling me to take a "day off" from time to time, and truth be told, that scares me. I know all the reasons I should: avoid boredom; avoid sense of deprivation; rattle my metabolism; give me tools to learn moderation; blahblahblah.
But the great fear is that I will get off the trail, find some beautiful valley, which will lead me to a mountain, which will reveal this and that and yet another thing I should behold...and, oh, the waterfall! and before you know it...I've lost the trail altogether. I will have eaten all the breadcrumbs I left to find my way back and there I'll be. Hansel and Gretel all rolled into one, reclining on the ground, stuffing her face with breadcrumbs at the foot of a waterfall.