A hallway or corridor in a dream represents a passageway of self-discovery. It may signify a passage through time.
If you pass someone in the hallway, it could represent a brief relationship in the future that will be short-lived.
An impersonal space of temporary transition
(Corridor; Doorman) In a dream, a hallway represents a servant who controls and manages the business and life of his employer. It also represents a doorman, or one’s actions that guides him to his purpose, or one’s deeds that could lead him either to paradise or to hell-fire.
A hallway in a dream also represents one’s grave, since the grave is a hallway to either heaven or hell, or it may represent the steps of a sick person or a handicapped person. Its lights, size and the ease of crossing it in the dream reflect the outcome.
You want to escape narrowness and restriction.
Hallways often represent spiritual growth and learning. They can also mean the dreamer has untapped psychic abilities.
A dream of walking through a long hallway or corridor can also represents your frustration in trying to escape a repetitive situation.
Dreams of a hallway signify that you are on the verge of stepping into a whole new space, because the hallway is the transition place between where you’ve been and where you are going. You are preparing for change, gearing up for a life altering occurrence. See Threshold.