Leaven also means to taint..So while most of your removed the "leaving agents" from your dwellings... Did you also untaint your spirit?? #SomebodyGonnaGetItOnThe3rdRead
Leaven. lev′n, n. the ferment which makes dough rise in a spongy form: anything that makes a general change, whether good or bad. —v.t. to raise with leaven: to taint.