A dream where you find or discover something can sometimes symbolize self-development, new beginnings, or some change that is taking place in your waking life. The dream can also suggest that you are recognizing things about your self or your life where there is room for improvement.
If you are searching for something in the dream and find it, then this can imply that you have the means to achieve something or you have found the answer to something in some part of your life. The dream may also reflect spiritual development or awareness.
When you discover a valuable object in a dream it can highlight untapped potential within, so maybe you need to focus more on your strengths rather than your weaknesses in some part of your waking life.
If you find someone in the dream then this can sometimes suggest a change in relationship with someone in your waking life, or that you are focusing on the qualities that this person represents to you.
If you can't find someone in the dream then this may imply that you are feeling isolated, you need to socialize more, or you are lacking the qualities that this person represents to you.