Moving upward or downward is usually a good sign in a dream. These are movements to the upper and lower parts of the psyche. Going up the stairs is reminiscent of Jacob’s ladder. If the stairway is spiral, this is probably meaningful.

As for the jeep, sometimes our dreams will have mythological overtones. Thus, the jeep’s color as well as any unusual or distinguishing things about the jeep may be important. The jeep might symbolize some sort of animal, such as a horse or a panther.

The policeman and his wife may symbolize the royal couple, the divine union or the holy marriage. However, I have also seen dreams where a policeman acts as like a liaison for the psyche. He keeps things under control and reports what he sees.

The type of stone of the large floating rock could be important – for example, granite vs. limestone. The stone can be a symbol of the Self. In “Man and His Symbols,” a stone can symbolize “the dreamer's innermost being, his true personality.” Stones can act “as containers of divine powers ….” https://monoskop.org/images/9/97/Von...mbols_1988.pdf . For more quotes by Jung about stones, see Carl Jung talks about stones: Ten Quotations | Jung Currents .

Air and wind often symbolize the spirit. Thus, the dreamer’s journey by a hot air balloon is a spiritual journey. The nearby mountain (?) probably represents the physical world.

Hope this helps.