To dream of various landscapes in your dream, represents where you are in your life or in your relationships. How do you see yourself with respect to the rest of the world and those around you?

According to Freud, the landscape symbolizes the human body.

To dream of ever changing landscapes, indicates psychological transitions or emotional progress. It represents the various stages in your life.

Alternatively, it may be offering you various viewpoints in looking at the same idea or situation. Consider the symbolism of key elements in the landscape.