What do you mean there will be no sun next year?

It probably means that as the end of the year approaches, everything will come to an end, and things that have just begun to be done, such as getting married, starting a project and opening a business, will not be done. There is no such thing as a banquet that never ends. It is possible to settle accounts and return the borrowed goods and money. I don't know the specific reason. I hope it helps you.