A sentence with portend with context clues?

You can use the Word portend in a few different sentences. But be careful. "Portend" means to predict, but it is used only for the objects which show the prediction, not for the person making the prediction. You cannot say "You could portend me about what was going to happen". On the other hand, you can say, "The Tarot cards portend a meeting with a tall dark stranger" or "These tea leaves portend a voyage to Africa" or "These recent eclipses portend a change of government" or "I do not understand what these circling ravens portend."