I believe the root of the change lies in my basic nature being affected by a tenet of psychological guidance: "Before serving others, get your own house in order" --which means first aim at personal growth and only then talk about service.
至於改變的原因，我想，應該是受心理輔導的基本精神影響：「服務別人之前，先處理自己。」意即先求自我成長，再談服務。