2. Sound and form. The traditional orthography is from grass to turtle, and turtle also sounds. "Five grains" refers to "five grains" and "harvest". "Turtle" refers to "turtle inspection", that is, tortoise shells are burned during spring ploughing to predict the autumn harvest. In the autumn harvest season, it is actually known whether the grain harvest is as predicted by Gui Bu. Original meaning: the season of grain harvest and the season of crop maturity. Description: The positive body of the ancient autumn character is from grass to turtle, and the other body is from fire, which means "the fire that burns the turtle"; Or there is a fire coming out from under the turtle, which also means "the fire burning the turtle."