If you have seen someone eat black grapes in your dream: You should not insist on some of your thoughts. To see that someone eats black grapes in a dream indicates that the dreamer is prejudiced against this person and these prejudices of the person will come to an end in a short time. If you do not know the person you see in your dream, it indicates that all your prejudices against this person will be erased.
If this person is familiar, it indicates that you have some prejudices against him and they will disappear in a short time. If the person you see in your dream is someone you do not know, it indicates that the prejudices against you will disappear. For this to happen, there must be a sincere meeting.