In the astral dreams, the third body, you can travel not only in space but in time. In the first, the physiological, you can neither travel in space nor in time. You are confined to your physical state and to your particular time – say in the night, ten o’clock. This ten o’clock becomes definitive, in this particular room, and in the physiological space that you have occupied. You can dream in it, but not beyond it. In the etheric, the second body, you can travel in space but not in time. You can be sleeping here and be in space – this is travel in space, but not in time. The time is ten o’clock in the night, still. In the third, the astral body, you can trespass the barriers of time – but only toward the past, not toward the future. The astral mind can go into the past, into the whole series of it, the infinite series, from amoeba to man – the whole process.
This astral mind has been interpreted in Jung’s psychology as the collective unconscious. The first is known as the conscious in psychology, the second as unconscious, the third as the collective unconscious. It is not the collective unconscious; it is your individual history of births. Sometimes it penetrates into the ordinary dreams, more in pathological states than in healthy states. A man who is mentally diseased, his boundaries are shaken. He’s become fluid. These three bodies lose their ordinary distinctions in a pathological state. So a pathological person, a person suffering from any mental disease, ordinarily can dream about his previous births, but no one will believe him. He himself will not believe it. He will say this is dreaming.
This is not dreaming in the first sense. This is astral dreaming. And astral dreaming has much meaning, it has much significance. But the third body can dream only in the past. It can have visions of all that has been, but not about that which is to be.
The fourth body is the mental. It travels both ways. It is not one way. It can travel into the past, it can travel into the future. This mental body can sometimes dream about the future; in some acute emergencies an ordinary person can have a picture, can have a glimpse into the future. Someone near and dear, someone beloved to you, is dying. This is such an acute state of emergency that the message may be delivered to you in your ordinary dreaming, because you don’t know any other dimension of dreaming – you don’t know the other possibilities – so the message will penetrate in the ordinary dreaming.
But it will not be clear because there are barriers to be passed and each barrier cuts off something, each barrier transforms something, and each type of mind has its own symbology. So every time a dream passes from one body to another it has to be translated into the symbology of the other. Everything becomes confused.
If you dream clear-cutly, as in the fourth body dream – not through other bodies but through the fourth – then you can penetrate into the future. But only on your own. This, too, is still the individual penetrating into his own future; you cannot penetrate into other’s futures.