Recalling the deep friendship between the author and Professor Ma Yan, from their companionship during their visit to Berlin to their longing after returning home. Teacher Ma Yan is a Benjamin researcher whose unique insights into history and philosophy have influenced the author. Her keen observation of the natural world and profound understanding of poetry make her a unique scholar. She integrates academia, life, and values, living in harmony and authenticity. Despite her early death due to illness, her words in the final stages of life still exude a sense of lightness, evoking memories of her free soul without a heavy physical body.