# Main door as qi intake (大门纳气)

> The main door as qi intake is the idea that the main door is the mouth of the home (the qi mouth), where outside energy comes in. That is why its position, degree and the space in front of it are studied more closely than any other opening.

- Vietnamese: Cửa chính nạp khí
- English: Main door as qi intake
- Chinese: 大门纳气
- Chinese characters: 大门纳气
- Also called: Cửa chính nạp khí · Qi mouth · Main entrance

## Explanation

Energy from the bright hall enters through the main door and spreads to the rooms. A door in a good sector receiving a calm flow feeds the home well; a door struck by a road, hit by draughts or looking straight at a WC spoils the energy from the start.

Windows and side doors also take in energy, but less.

## How Home Check uses it

When checking feng shui, Home Check looks at the sector and mountain of the main door, the airflow reaching it and what the door looks straight at inside. — [Feng shui check & fix](https://myhomecheck.ai/feng-shui)

## Related terms

- [Sitting and facing](https://myhomecheck.ai/learn/glossary/sitting-and-facing): Sitting is the side a house leans its back against; facing is the side it looks out from.
- [Door–kitchen–WC alignment](https://myhomecheck.ai/learn/glossary/door-kitchen-wc-alignment): Alignment is when the main door, the stove and a WC door sit on one straight axis, looking straight at each other.
- [Direct wind](https://myhomecheck.ai/learn/glossary/direct-wind): Direct wind is a strong current of air that blows straight at the main door or rushes right through a house.
- [Bright hall](https://myhomecheck.ai/learn/glossary/bright-hall): The bright hall is the open space in front of a house where energy gathers before entering the main door.

## Questions

### With several doors, which one is the main door?

The one residents use every day and guests come through — usually on the façade. A garage door or a rarely used back door does not take its place.

### Must the main door match the house's facing?

Mostly it does. When the door is on a side wall, its own direction is read alongside the house's sitting and facing.

---  
Original page: https://myhomecheck.ai/learn/glossary/main-door-qi-intake  
Other languages: [Tiếng Việt](https://myhomecheck.ai/vi/tri-thuc/thuat-ngu/cua-chinh-nap-khi/index.md) · [中文](https://myhomecheck.ai/zh/learn/glossary/main-door-qi-intake/index.md)  
Updated: 2026-10-21