What does it mean to cut a triangle with a wreath?

Triangular cutting is the practice of cutting both ends of wreath couplets into triangles.

Triangle is a common form of wreath elegiac couplet, which can make the two ends of elegiac couplet present sharp shapes, symbolizing the grief and memory of the deceased. This form can also make the wreath elegiac couplet more beautiful and give people a neat and solemn feeling. In the traditional culture of China, the triangle is regarded as a symbol of stability and integrity, and cutting the triangle can also express the blessing and peace for the deceased.