Literature Reference: 立夏，四月节。立字解见春。夏，假也，物至此时皆假大也。——《月令七十二候集解》 The Beginning of Summer, the fourth month's festival. 'Li' refers to the beginning, and 'Xia' means 'to grow,' as all things reach their full growth at this time. Source from 'The Seventy-two Pentads of the Lunar Calendar.'
立:
夏: Summer, the season of vitality and vigor, embodies a spirit of health and exuberance.
Meaning: The Beginning of Summer signifies the start of the season, symbolizing growth and prosperity.