Hello Chai,
So based on my experience with using my dream interpretations book and trying to figure dreams out myself, I will try to do a rough guess of what's going through your mind right now. Keep in mind that this isn't necessarily going to be true so just maybe "take it with a grain of salt".
So, you are about to work at a bar. You have a lot of spiritual symbols in your dream...You may be afraid of working at this bar because you are afraid of what might happen to you; essentially you are afraid of the unknown and not being in the most comfortable environment. You are anticipating bad things that may or may not happen, and you're prepared for the worst case scenario.
The river (according to my book) represents the flow of how life is going, and the stone (or rock) represents "happier and more carefree times". The phrase "he saw the light" means to recognize the results of actions.
The waterfall/road leading up to heaven may symbolize emotion that "spills over". Sometime this means an orgasm, but it may also mean "any display of emotion that is forceful and yet somewhat controlled". To me, this could mean that your emotions regarding worries about "what could happen" are forced when you're going to be working at this bar, but they are also somewhat controlled or manageable since you may be worrying yourself with listening to mostly negative news about what happens in any worst case scenario. This may represent a conflict of strong emotions such as your desire to work there and your fears about the aforementioned.
Girls in a dream represent the innocent, pure side of ourselves. You were basically asking them in the dream, "what if I follow the rules directly to get to heaven?" but they didn't answer. I think the unspoken answer is that you need to follow your intuition and conscience while making decisions about the right thing to do, and that will lead you on the "path to heaven". The light fading as you go closer I would say means that you are trying to do what you *think* is right...but now you are left on your own to find out what *your* path is and what you should do.
Dreams often represent the problems we have through the day and give us answers on how to deal with them. I would suggest that you talk to some people about this problem you're having and that you follow your heart, what you most want, if you flipped a coin, which option you would most hope for while it is still in the air. I hope I helped a little bit, and remember, I'm just a stranger so I could be completely wrong. I don't know anything about you really. But I wish you luck on everything.