Seeing flour in your dream symbolizes wealth or blessings. It indicates the arrival of happiness and prosperity in your life. Dreaming of flour may suggest that you are about to gain new knowledge that will bring positive changes to your life. Additionally, flour in a dream can represent a type of relationship, where you are building a deep and meaningful connection with your partner.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Flour" (page 171).
<Wheat; Rice flour; Semolina) In a dream, flour means money or blessings. Semolina in a dream represent a husband who is compatible with his wife. Flour in a dream also means acquiring exalted knowledge, travels, money, shop, tools, castle, defense, religious nature, guidance, or recovering from an illness. However, eating it in a dream means poverty. A bowl of wheat flour in a dream represents one's savings, or it could represent one's family and children. Mixing wheat flour to make bread in a dream means that a friend will travel to meet one's family. Mixing and kneading whole-wheat flour in a dream means faith, deputyship and victory over one's enemy. Flour in a dream means immediate profits, the surfacing of the truth and enjoying comfort after toiling.
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.