Children actually try out in dreams the various courses open to them. We may act out probabilities within dream reality and try out alternatives, and not necessarily short-term ones. For example, you would have made an excellent doctor. In your terms, you worked out this possibility by weaving, over a period of three years, a dream framework in which you learned exactly what your life would have been, had you gone into medicine.
This was more than imaginative. You examined one probability and chose another. The individual, then, chooses which probabilities he/she desires to actualize physically. In one such episode, for example, you followed your present course through; therefore, you are subconsciously aware of your own ‘future’ – since you chose it. There are always new choices, however. You foresaw the future possibilities within the main choice system.
In your present life, the same process continues. Most of these dreams are very disconnected from the ego and will not be recalled. The self who pursues these divergent paths is actual, however. The doctor you might have been once dreamed of a probable universe in which he/she would be an artist. He continues to work out his/her own probabilities. He/she exists in fact. You call his/her system an alternate system of probability, but this is precisely what he/she would call yours.
Now you will have some experiences that are shared in the dream state. They will be involved with episodes familiar to you both before you went your separate ways. You are like two limbs from the same tree. You recognize the same mother.
Now you will have some experiences that are root dreams. They serve as a method of maintaining inner identity and communication. Projections can also occur from these – that is, you may, for example, project into the life of the doctor. (I am using you and the doctor as an example. Art, you see, is also closely connected with healing. The projections of which I spoke happen occasionally and spontaneously on both your parts.)
Reincarnation is but a part of this probability system, the part that falls within our particular universe. There are also root dreams shared by the race as a whole. Most of these are not as symbolic as Jung thought them to be but are literal interpretations of the abilities used by the inner self. For that matter, as your know, flying dreams need not be symbolic of anything. They can be valid experiences, though often intermixed with other drea elements. Falling dreams are also simple experience in many instances, representing downward motion. or a loss of form-control during projection.