If the crystal is not in your frequency you may not receive any messages from it. Try another crystal. The interpretations are generally subjective. Two different people can look at the same image in a crystal and receive two different messages. The images can be about yourself or about another event that occurred near the crystal or object at any point in time.
Crystals have messages of their own.
Images are symbols. You can get interpretations for them from dream books, or other books with symbols. On several occasions I have scryed with crystal skulls and received many messages from them. As I gave the messages to the owners of the skulls, they said I was remarkedly accurate. I have scryed with many other types of crystals and enjoy the messages.