What it means
The Moon is feeling. Mars is drive. When they share a house, emotion gets a motor.
Classical yoga lists describe this pairing as a way of earning: trading, selling, risk-taking, anything where gut feel makes the money. People with it are said to act fast on a hunch and to ride big mood swings along the way. The yoga is also given as a reason for restlessness.
Keep one thing in mind. The Moon and Mars share a house in about 1 chart in 13, and the sign matters a lot. In Cancer the Moon is strong and Mars is weak. In Aries Mars is strong and the Moon is just comfortable. Read the pairing together with the sign.
If this passes, ask how you handle money when you are upset. The yoga is mostly about that moment.