叶: Leaves and branches. In names, they often symbolize prosperity and flourishing, conducive to thriving wealth.
思: Thought, intellect. In names, it often signifies quick thinking, sharp wit, and intelligence.
Meaning: Ye Si, where 'Ye' signifies vitality and lushness, and 'Si' embodies deep thought and wisdom, conveying a gentle, introspective, and intelligent impression.