How long will the new tomb geomantic omen affect future generations?

Usually about thirteen years. Of course, it is judged by the running speed of the context, the rise and fall of the context, and the canyon between Dongshan and Mother Mountain. The time for good or ill luck to come true also depends on the opposite direction. If it is wrong to choose the date or the upright position, it is a fierce position. If you commit three murders or serious mourning during burial, it will be realized in 100 days. Of course, these are very detailed and should be decided according to the actual situation.