The 2nd house answers the question: what do you value? Planets in this house represent possessions, money, self-esteem, and values.
Mercury in the second house suggests your resources will fluctuate throughout life. The Moon in the 2nd indicates a person who needs resources to feel secure. A person with Uranus in the 2nd wants to be free of attachment to resources.
Astrologer Robert Hand says, "The second house signifies the part of the ego that is willing to flow beyond the boundaries of the body and attach itself to external entities, making them part of one's being. "