难不难过都是自己过痛不痛心都是自己心
[nán bù nán guò dōu shì zì jĭ guò tòng bù tòng xīn dōu shì zì jĭ xīn]
The phrase means 'Whether happy or sad, it all passes through me; Whether hurtful or heartwarming, they all reside within my heart.' It reflects a deep contemplation over emotions and the acknowledgment that one has to deal with their own emotional turmoil on their own.