Dreaming of grain is a symbol of luck, which means that you may get happiness and wealth as you wish and live a worry-free life.
Women dream of grains, which means that they can meet a promising and rich young man, which makes others very envious.
The original version of the Duke of Zhou interprets his dream:
Dream of getting ripe grain, good luck. Dunhuang Dream Book
Dreaming of those who gain grain in the city is a good fortune. Dunhuang Dream Book
Those who dream of growing grain will all get wealth. Dunhuang Dream Book
Dream of eating grain, good luck. Scholars dream of this. They have not received salary as officials, but have increased their salary as officials. Ordinary people dream of this, they have surplus grain and savings. Farmers dream of this, the fields are ripe and the harvest is abundant. 'Dream Lin Xuan Jie'