The primary (largest) windows of your house are its eyes. Eyes function as access portals for the spiritual. You don't want the front of your house directly facing bodies of water like lakes and rivers, and graveyards as well. All places of constant spiritual activity. The wind carries the spiritual residue from these places and into the home when we leave our windows open, or when we invite and give permission for things to enter. Chimes, whistles, smoke, blowing out candles, curtains swaying in the wind - these all serve as invitation. Avoid putting children's bedchambers in such rooms to avoid bad dreams and disturbed slumber.