上辈子我欠你一分钱这辈子我还你一颗心
[shàng bèi zi wŏ qiàn nĭ yī fēn qián zhè bèi zi wŏ hái nĭ yī kē xīn]
This implies that one would repay even a tiny debt incurred from a previous life with their wholehearted commitment in this lifetime. In China, people believe in reincarnation. This indicates a deep sense of gratitude or loyalty to someone.