"Wheat" is a symbol of the spiritual "Seed", "Bread", "God's Word", His Commandments, the knowledge and fulfillment of which satiates the human soul, feeds it with Wisdom, which gives strength to overcome all the difficulties of its earthly life.

"The wheat" is a symbol of people who are cleansed from sinfulness by following the Teachings of Jesus Christ, who have attained the good "fruits" of righteousness by doing the Will of God.