Clutter, sharp angles, nooks and crannies, and storage areas can slow down energy, causing it to stagnate and become unhealthful. Energy should not disappear so quickly it has no time to do any good, so if your front door has an unimpeded view to the back door, consider blocking it with screens. Busy streets, train tracks, and airplane flight paths all generate energy that may move too fast to enter your home. A wall, trees, shrubbery, and hanging plants are often used to slow down or to screen out fast-moving or negative energy. A weathervane or water, such as a fountain in the front of the house, might also help.
Intersections create lots of qi.
If your front door is not well situated, it could become bombarded with energy, making relaxation impossible. A mirror on the front of the house can deflect energy. Balance is a cornerstone of happiness and good design. Everything from exterior lamp poles to inside decorations might need balancing to generate harmonious energy. Sharp, jutting angles need to be softened by placing plants or statues in front.