This is the most important thing to consider with doors.
Poison Arrows are angles formed by roads or other buildings
or even roofs that point badly at your own home.
The worst is a T-junction in front of your front door leading
right into your home. Of course, with any sort of busy traffic, one can well imagine the noise and dirt and dust thrown
up by such a configuration.
I believe this, though I do not believe half of the anecdotes
I am putting up regarding feng shui: I believe individual feng shui obviously develop their own theories, and also it is too
linked with New Age health and urban interior decorating ideas, that may not have to do with Original Feng Shui.
Roads, roofs, utilities poles, all can point wrongfully
at your home.
This is really rough stuff - get out the Kleenex!
However, you can fix it up with a little Feng Shui mirror
hung the correct way outside of your front doorway.
Also you can add some fences, new trees, etc. to curve
the whole scene.
I love Chinese feng shui philosophies - the book I have
just read tells us to Get Rid Of The Offending Road that is pointing its T-junction at your home.
As though suburban housewives in England could just whip
out of their house, put on some rubber dishwashing gloves, and just dig up that street and toss it away.
Anyway, this issue is the worst.