Water symbolizes feelings. When feelings overflow, flooding dreams often happen, where the damage caused is a warning of the damage getting carried away by excesses of passion can cause in our coexistence.
Dream dictionary: Flooding dream meanings
…If the water is pure and clean in the dream, it means depression along with a strong and a healthy body. What is disliked in such dreams is the murky water. If one owns a stream in a dream, it represents one’s livelihood, his shop, business, work, or one’s good deeds that remain beneficial even after his death and until the Day of Judgment such as a blessed progeny, a school or a mosque he builds, a road he opens, a book of knowledge he leaves behind, or a charitable endowment. Seeing waters overflowing from a fountainhead and flooding one’s property means sadness, crying and sorrow and the same applies if one drinks from that water in his dream. If one sees several springs gushing forth in a dream, it means prospering through dirty actions and corruption. Seeing a spring in the valley in a dream means blessings for most…