The key to getting a Christmas cactus to bloom is to provide the right conditions. Make sure it gets plenty of sunlight, but not direct sunlight, and water it regularly but not too much. Keep the soil moist but not too wet, and make sure the temperature stays between 65 and 75 degrees Fahrenheit. Also, be sure to feed your cactus with a diluted fertilizer every two weeks. With the right care, you'll have a beautiful bloom in no time!