It is said that if we put money under the pillow, our dreams are probably related to wealth. With such superstition, they think it is lucky to do so and they can also make money.
During the Chinese New Year, the money placed under the pillow is also called lucky money, which has the functions of exorcising evil spirits, keeping peace and making money into treasure. In some places, the elders directly distribute the lucky money to the younger generation, and in some places, they put the lucky money under the pillow of the younger generation.