Literature Reference: 怡，和也；怿，悦也。——《说文解字》 Yi means harmony; Yi means joy. Source from 'Shuowen Jiezi'.
怡: Harmony and Joy. Often used in names to signify happiness, delight, and auspiciousness, embodying well-being, peace, and joyful fulfillment.
怿: Joy, delight, and elation, each carries a profound and graceful significance.
Meaning: Yi Yi signifies a joyful and harmonious state of mind.