Additionally, congratulations cards can be a way to share in someone’s happiness and positivity. Celebrating success and achievements can be contagious, and a congratulatory card can help to spread that positivity. When we share in someone’s joy, it can bring us closer together and create a sense of community. Congratulatory cards can help to create a positive feedback loop where the recipient feels good about their accomplishment, and the sender feels good about sharing in their happiness.