What are the stresses of courtyard pavilion feng shui?

Outside the courtyard gate, it is not allowed to flow downstream (it is not safe to waste money), not allowed to face the inverted arch ditch or the river and fence, and not allowed to face the ventilator tuyere of other people's kitchen (brain injury and illness); Outside the courtyard, don't rush directly to other people's corners, columns, stairs, pump motors or vibrators (it is best to stick red dots or red paper on the motors), and don't rush obliquely to other people's lanes or fire lanes; Don't rush to the corner in front of the courtyard (the main disaster of lotus is the round little red dot in the corner), and don't rush to the big old tree (prevalent in Yin Qi); The right side outside the courtyard gate should not be higher than the front, there should be no trees, no factory motors or vibrating machines; Can't build garages and shacks; Don't plant prickly flowers or cacti (except roses) in the yard, and don't keep chickens and ducks (bronchitis). Poor sanitation and unsafe home.