Dreams or visions about a collision or accident mainly tell you about the situation you are in in your waking existence. You can think of emotional pain, sadness, not feeling well. Anger, pent up emotions, fears and traumas.
You yourself are the car, the accident, the cause and the creases and so on. It is a reflection of how you feel and/or how you felt and so on. When explaining these kinds of dreams or visions, look very carefully at the following points. Are you the driver or the cause or the bad luck.
Another explanation is the confrontation that you keep trying to avoid, your subconscious is trying to make you aware of your disorientation, the loss of control, you are lost right now.
Yet another explanation is that an accident portrays the struggle between your masculine and feminine energies, the battle between lover, friendships and acquaintances come to a head.
An alternative explanation is accumulated guilt, pain, sadness and emotions that you unconsciously punish yourself for. Another important explanation is the adversity, strength, strife, falsehood and obstacles that you have to overcome in life. Dreams in which you have an accident, collision etc. can be experienced both positively and negatively, after rain comes sunshine - as it were you shake yourself (your soul) awake, becoming aware of the fact that.