In Lal Kitab, the combination of Mars (Mangal) and Moon (Chandra) creates "Chandra-Mangal Yoga," which is highly auspicious for wealth and prosperity.
Dr. Rishi Rohit Sharma explains a specific, powerful alignment: When Mars is in the 10th house (its exalted position of power and career) and the Moon is in the 4th house (its own house of peace and mother), they aspect each other directly.
This creates a beautiful synergy, like mixing sweet syrup with pure river water ("rang sharbaton ka tu meethe ghaat ka paani"). The person enjoys immense professional success (Mars) while maintaining absolute emotional peace and domestic happiness (Moon).