Is this a natural disaster?
If the crack is located right in front of the window of your room, facing the "heaven slashing", then there is likely to be a disaster of mass annihilation; The narrower the gap, the fiercer the distance! Therefore, it is not appropriate to choose a house to live in, especially the members of the house who live under this blade.
The house you live in is within 0/50m of Tian Shu/KLOC, which is serious to be solved?
The solution to the evil spirits in heaven:
1, hang thick curtains
Hang thick curtains on the window, or put screens in the transition space between the balcony and the room to stop the suffocation outside the window.
Step 2 place feng shui ornaments
Put the feng shui ornaments on the window where you can see the suffocation. If the situation of "sky smashing" is not very serious, you can put bronze horses on the windowsill; If the situation is serious, you can hang big copper coins and five emperors' copper coins on the window; If the situation is serious, you can put a pair of Kirin on the windowsill.
I think it's helpful to you, so adopt it.