At this time the autumn farming activities went into a phase of decline, and in the north the weather turned cold. There was always some fear that barbarian tribes might "descend south to graze their horses." At this time everyone began to brush up on their martial skills, even actively going out to kill the barbarians or steal the fat horses and goats that they raised!
同時秋天農事告一段落，北方又天氣轉寒，為了怕胡人「南下牧馬」，這個時候要開始習武練兵，甚至主動出征殺伐，去搶胡人養得驃肥的馬羊！