The meaning of a dream about a friend will depend upon what the relationship between the two of you is like and whether you are dealing with any important issues in that relationship. Your dream may reflect feelings about your friend that you are unable to express in real life. For example, you may express feelings of anger or jealousy in a dream.
A friend in a dream symbolize a quality that you associate with that friend, such as wisdom or emotional strength. Your dream could be telling you that you should develop this quality in yourself.
If you dream that your friend is behaving negatively in your dream – for example, if they are lying or spreading gossip – you may need to make an effort to avoid in engaging in these behaviors yourself.
If you dream that you are friends with a celebrity, you may want to develop a quality that you associate with this celebrity.