How dreams can affect your life? Is it nonsense or it is a small window to see a piece (glimpse) of the future?

Some of them still should to wait for have a (good) reason to appear. I am talking about night dreams. However I am going to talk about them, sometimes I can see wonderful dreams and I really want them to become true.(either "become  real" or "come true") Unfortunately tonight I saw a very specific dream, I cannot understand if it will be turned in a good side to me or bad. No doubt it is a dream that has pointed me on to one of the part of my future. It's hard to explain, usually I can feel it is just a nonsense or it has a hidden context. Let’s start at the beginning. My close friend told me about her dream two days before, I have seen my dream. I think it is a little bit connected, because she said me that she thinks it was a dream about the end of the world. I was impressed. Here we go! Let’s get start! (Let's begin!)
It was a cold weather, people around were worrying, they wanted to find a warm place and wait for when the good weather comes back. (returns) The cold reached to the bone. Many people have found a small room to be close to each other, I was there too. We were sitting and having a good conversation. I saw how strong emotions wanted to escape. However everyone tried to lift the group’s mood up. The situation escalated with each passing second. Our nice chatting was interrupted by a shrill female scream. The woman was in a huge panic, her body trembled, she fell to the floor, she it was hysterical. Through the grievance and tears she wanted to have an effect on people and to attract more attention. In our group was a leader, the wiser woman with a gentle heart. She helped this woman with the magical water and a good advice. She understood her weakness. Turning to the group she said we need to be stronger if we want to survive.
I am sure this dream is not about the end of the world, I hope it is just a small point on my own way. Sometimes we need to see and feel strong feelings to begin to change our future or a small situation in a daily life.