Seeing people in our dream is a very common experience. Sometimes we know who they are, and the dream makes a little more sense. Sometimes even knowing who they are does not help us much. If you see a man in your dream that you do not know, one interpretation is that this person is on their way into your life. They may be someone to help you in your situation, or may simply be a new friend coming into your life. If the man is known in your life already, then the details and symbols that will appear in your dream with him will indicate what area of your life this person is relevant in.
Sometimes we are not sure if we should have people in our life and then we dream about them, and this is often a cue that this person is there for a reason. This sometimes even means this person is a soul connection, as dreams are one method our soul connections use to communicate with us. An older man appearing in your dream is suggesting that more wisdom is required in a given situation. You may need to consult a third party for more details and information before you make a decision, or you may need to consult an older male in your life, like a father or priest or grandfather, to help bring you some peace over a situation that is vexing you.