This goes for the home as well as the human.
The shades and windows, the dishwasher, and the washing machine should all be open as much as possible. Let light in and let air circulate through. Unhealthy bacteria and mold thrive in warm, dark, damp places.
Apply this to your whole self, while you’re at it. Letting light from the sun pour into the home has a profound impact on our mood. Fresh air and sunshine can make a big difference on how we feel. Getting outside into fresh air and sunshine is important for whole health too. Even a few minutes a day can make a big difference.
Lies and harmful negative thoughts also fester in the dark. They try and take root and multiply there. Open up the shades to your heart, mind, and soul and let in light and truth.