A tunnel in a dream typically symbolizes the process of fetuses coming out of the world through their mother’s womb. Therefore, the dream of seeing a tunnel is related to these birth memories. Or, there is a high possibility of bowel disease due to abnormalities in the intestine or colon. I went out of the tunnel and entered another world, and if it was a beautiful and colorful place like a flower garden, it would be a dream that implies death. But if it was a city that turned into ruins or a world that felt bleak and ugly, you’d be in trouble.