Upstairs dream meaning is explained below using 4 different sources. Each interpretation is shown with its source.

Interpretation 1 — Dr. Mıchael Lennox

The level or floor in a building is directly related to various levels of thought and consciousness. Higher levels are connected to more conscious awareness and that to which we aspire. Anything connected to the ability to move upward is a symbolic representation of this desire to ascend.
Source: Complete Dictionary of Dreams Author: Dr. Mıchael Lennox

Interpretation 2 — Dream Explanations - Anonymous

Dreams of walking upstairs signifies that you are moving up in the world, that you are elevating your consciousness and seeking a higher perspective. Dreams of upstairs also are a message to use your mind, logic, reasoning and mental process.
Source: Strangest Dream Explanations Author: Dream Explanations - Anonymous

Interpretation 3 — Nancy Wagaman

The top floor (or an upper floor) in a house or building can represent: Your spirituality or the spiritual aspects of your life.

Higher wisdom.

Greater insight or perspective.

See Floor, Stairs, Climbing, Ceiling, High, Above, Top

Source: The Curious Dreamer’s Dream Dictionary Author: Nancy Wagaman

Interpretation 4 — Margaret Hamilton

Indicates that positive steps were taken, for “up” is a step of faith; see “staircase”
Source: Dream Dictionary Unlimited Author: Margaret Hamilton