It is a very auspicious sign to hear the rooster crow during burial, that is, the rooster is leading the way for the dead, which also shows that the burial time is good, it is a land of geomantic omen, and it will also help future generations to prosper.
When people are buried after death, they don't know where to go and need a token as a guide to communicate with them. When it comes to literature, the drummer plays music, the soul paper floats, the soul fan flutters and the soul chicken crows.