It depends a lot on the attitude, the size and the color. Aggressive means danger. Green hope and good luck, new opportunities. Yellow is danger sign, warning of obstacles and problems.
1 . Dreaming of a snake, despite its negative fame, is a good omen, it is related to Kundalini energy, to vital energy; Its shape, color and attitude towards us in the dream will be a clue to how this energy is in us.