To dream of an ankh represents a total loss of leverage. Complete subordination to the needs or wishes of others with more power than you. You may feel that others can dictate terms to you.
The symbolism is based on the pharaohs using ankhs to symbolize their god-like power to dictate to the people.
Example: A man dreamed of being handed an ankh. In real life he had just lost his most important work contract. His career was ruined.