从刻骨铭心到淡然如陌
[cóng kè gú míng xīn dào dàn rán rú mò]
'From unforgettable experiences deeply inscribed on the bones to regarding things indifferently as if passing strangers' indicates an emotional process starting with profoundly impactful events, usually implying a change or growth in mentality. This could be viewed as maturing from passion or trauma into calm indifference or wisdom.