A hallway or corridor in a dream symbolizes the beginning of a journey into the unknown.
Doors along the corridor in dreams represent how you feel about the choices you have in life.
Are you in endless corridor with an infinite amount of doors on each side?
Are the doors so small you crouch down to fit into them? Have you gotten lost because the hallway is so complex and confusing?
If the corridor is dark, you could have many worries about your future, while a bright corridor could mean that you are confident that any problems that you have will be solved.