只不过看淡了而已只不过看透了而已
[zhĭ bù guò kàn dàn le ér yĭ zhĭ bù guò kàn tòu le ér yĭ]
'Just letting go, nothing more than seeing things clearly' is the essence of this nickname. It implies that the person has reached a point of indifference, where they no longer get affected deeply by life's ups and downs as they have gained deeper insights into human nature and society.