桦: The tree species, birch. "Birch" symbolizes the toughness akin to a tree, unyielding to wind and rain, metaphorically representing a robust physique conducive to good health.

庆: Celebration, jubilation. This character, embodying great joy and auspiciousness, is often used in personal names to signify a life of smooth sailing and the fulfillment of wishes, symbolizing the arrival of good fortune.