A tunnel in dreams suggests that you are exploring your unconscious mind. It may also be a symbol for womb. Alternatively, it signifies that there is something you want to hide in your life. If something is blocking the tunnel, some situation or person is stopping you from moving forward.

To see a train coming toward you while you are in a tunnel, foretells illness and changes in business.

To dream that you are walking into a tunnel, suggests you are entering a new stage of life.

To see a tunnel caving in, foretells disappointments, evil rivals, and failure.

To dream that you are looking into a tunnel, indicates that you will confront some desperate situation.