a bumper harvest of all food crops; a prosperous year for agriculture

unable to distinguish between the five grains; describes someone who is out of touch with reality or lacks practical knowledge because they have never engaged in physical labor or production

various grains and cereals; food crops in general

literally meaning one who does not work with their limbs and cannot distinguish between different types of grain; describes someone who is lazy, out of touch with physical labor, or lacks basic life skills and practical knowledge