Literature Reference: 加，增也。——《说文》 'Jia' means to increase or add. Source from 'Shuowen Jiezi'.
加: The image of doubling and overlapping symbolizes the bountiful harvest of both fortune and prosperity, as well as the simultaneous attainment of fame and wealth.
Meaning: The character 'Jia' signifies increase and enhancement, symbolizing progress and improvement.