What do you mean by the end of the Millennium?

This means that the harvest season is coming. Millennium belongs to one of the traditional 24 solar terms. Farmers usually sharpen their sickles after the Millennium to prepare for the autumn harvest. This sentence means that the harvest season has come. Twenty-four solar terms refer to the twenty-four specific solar terms in China lunar calendar, which are formulated according to the change of the position of the earth on the ecliptic (that is, the orbit of the earth around the sun). Every time the earth moves on the ecliptic, each solar term corresponds to 15 degrees.