In ancient Egyptian mythology, there was a goddess named Hathor who was often associated with joy, love, and beauty. She was also known as the "Lady of the Sycamore" and was believed to reside in a sycamore tree, which was seen as a symbol of life and fertility. Hathor was often depicted as a cow or a woman with cow horns and was closely associated with motherhood and nurturing. This connection to family and home life further emphasizes the importance of joy and happiness in ancient Egyptian culture.