How's it going, babylemonade? Welcome to Dream Views. I think Darkmatters covered it pretty well. I think nothing can really pin down what symbolism means to someone else, subjectively. For example, if you take someone who lives in upstate New York, and someone who lives in Alaska, they are probably going to have different reasons for dreaming about subway trains, ya know?

I think you'll like it, here. This is a great community, and you can probably find pretty much anything you might need to know about dreams and lucidity. I would definitely advise starting up a dream journal, so it's good that you're considering it. Heh.

If you have any other questions, feel free to ask around, and enjoy your stay!