Exhaustion is temporary tiredness fixed by rest, like a wilted plant needing water. Depletion is deeper: your soil has lost nutrients and needs active replenishment through nourishing activities. Knowing which one you have matters because rest alone won't fix depletion.
Depletion is more about actually the absence of input. You've been drawing from the well without refilling it, and it's basically dry. You can sleep all you want, you still wake up depleted. You can take the whole weekend off and still feel hollow on Monday because depletion doesn't respond to rest, but it responds to replenishment, and those two things are not the same. Think of it this way: you have a beautiful garden. Exhaustion looks like wilted plants because you haven't watered them. Depletion is more like your plants aren't growing because there's no nourishment left in the soil. One is easily fixable— give them some water. In this case, get some rest. The other takes more time. It's more about feeding the soil so that it can give back to the plants what they need. In that case, we're looking at things that we can do that light us up. Another way to look at it is that rest is passive and replenishment is active. And until you know which one you need, you're you're not really be— going to be able to solve it.
