The question sounds very much like it refers to a scene in Inception. Please see the link attached below. Otherwise, it is difficult to offer an interpretation without some sense of the context or emotions involved. Was this fall terrifying or exciting? A grateful letting go or fearfully losing one's grip? One thinks of a commercial in which people fall backward into a huge glass of iced tea = refreshment. The dream could have opposite meanings depending on the emotions involved.
This dream suggests that you feel your son is not aware of risks he is taking.
You're falling in love of course!
It means... you are going insane.
This dream indicates that you have accepted the reality of this loved-one's death. The falling snow represents a peaceful end.
To dream someone is driving backwards means that the dreamer is dependent on the driver and that the person driving is leading the dreamer the wrong way. If the dreamer is driving backwards it means that the dreamer's life is going in a direction in life they know to be wrong.
that you should watch out for falling trees
You want to be in love with someone, or you are falling in love now.
Falling in water
Tell him to stay away from trees.
it means your life will soon come to a sudden screaching halt.
Falling dreams, while frightening, often represent the body's reaction to the relaxation of muscles when in the process of "falling" asleep. The subconscious combines the physical sensation with the literal meaning of the expression "falling asleep" to produce a dream of falling.
In dreams, it really makes no difference whether the dreamer or some one else is falling. Other people in dreams usually represent the dreamer. Falling can merely represent "falling" asleep, or it can mean feeling totally out of control in some area of life.