Consider the vast discrepancy between perceived and actual reality. Memories are faulty, even patently false. The ability of the mind to be deluded and convoluted is strong. Take cleanliness for example. You might consider the carpet filthy because you see a few crumbs and such, while you blithly use your kitchen sponge or rag for cleaning dishes that is actually teeming with germs. But what matters more is your perception of the situation, not the truth of the matter. Which is why I say, choose to be deceived. Choose bliss over neurosis. If you want it to be clean, decide its clean. Its probably only as dirty as the things you truly believe to be clean.