To dream of going through a tunnel is bad for those in business and in love.

To see a train coming towards you while in a tunnel, foretells ill health and change in occupation.

To pass through a tunnel in a car, denotes unsatisfactory business, and much unpleasant and expensive travel.

To see a tunnel caving in, portends failure and malignant enemies.

To look into one, denotes that you will soon be compelled to face a desperate issue.