The four celestial animals
Form school (峦头, luan tou) describes the ideal site as an armchair. Standing in the front door looking out:
- Black Tortoise (玄武), behind you — the back of the chair. Higher ground, a hill, trees or a taller building give support.
- Vermilion Bird (朱雀), in front — open, bright space where qi can gather: a garden, a quiet street, a view. In the far distance a low "table mountain" is welcome.
- Green Dragon (青龙), on your left — the left armrest, ideally a little higher or more active than the right.
- White Tiger (白虎), on your right — the right armrest, ideally calmer and lower than the Dragon side.
The check uses the same rule: everything within 45° of straight ahead counts as front, and so on round the house.
The classic warnings
- Road arrow or T-junction (路冲). A road that runs straight at the house, usually at a T-junction or the end of a cul-de-sac, is the most-cited form problem. Traffic and headlights aimed at the door are a practical problem too.
- Sharp angle (尖角煞). The corner of a nearby building, or a roof ridge, pointing at the house — especially at the front door.
- Pressing building (压迫). A much taller building close in front, blocking light and the bright hall.
- Water behind. A pool, pond or river at the back is traditionally read as a lack of support, the opposite of the "mountain behind, water in front" ideal.
- Something in front of the door. A pole, large tree or column directly in line with the entrance.
Using the result
Form school is about the setting, which you usually can't change. Traditional responses work with what's there: a hedge, fence or planting to screen a road arrow; a solid boundary or tall planting at the back where there's no "mountain"; lighting and an open, tidy approach at the front. The check doesn't score your house — it lists what you marked and how the tradition reads each one, so you can weigh them yourself.
Questions
Does the facing need to be exact here?
No. Form school works in broad quarters, so a reasonable line through the front door is enough. For compass methods, use the facing finder, which corrects for magnetic declination.
How far out should I look?
Most attention goes to what you can see from the house — within a hundred metres or so. Large features such as hills, rivers and very tall buildings matter further away.
Is my address stored?
No. Searches go to OpenStreetMap to find the place; everything you mark stays in your browser.