What do you mean by climbing Longkou?

Follow the death of the emperor. Climbing means: grab something and climb up, which means attracting and following. Longkou is the location of Longkou in geomantic omen. There are dragons in feng shui, and the direction of the dragon tail corresponds to Longkou. Climbing Longkou means following the emperor or mourning his death. This answer is for reference only, please don't be blind and superstitious. )