The gate in the dream may represent the new chapter of your life. There is a possibility that you will face new chances and times in your waking life. Alternatively, the gate could show the end of something or inability to control your life, especially if the dreamer sees the gate being closed. If the dreamer is unable to open the gate, then he should reconsider the situations and activities in his waking life that he is not happy about. The dream could also indicate that you are not ready to take some important action in your waking life.
Read more about dreaming of Gate in other dream meanings interpretations.