My peace lily finally rebounded after I let it completely dry out last month—honestly didn't think it'd come back

My peace lily finally rebounded after I let it completely dry out last month—honestly didn't think it'd come back. Turns out they're tougher than I gave them credit for. Now I water it when the leaves start to droop just slightly instead of waiting for a full collapse. That yellow leaf still hasn't recovered though, which is annoying, but at least new growth is coming in clean.