What metaphors are used in Please Look After Mom by Kyung-Sook Shin?

The narrative's thematic emphasis on the perceived functions of motherhood is highlighted in Section Two, with Chi-hon describing, at considerable length, the sacrifices to which Mom went in order to enable her (Chi-hon's) schooling. This foreshadows equally detailed descriptions of the lengths to which Mom went to support Hyong-chol, themselves described in Part II. This theme is also explored in the vignette at the print shop, where the devotion of the clerk's mother can be seen as metaphorically representing the eternal devotion of motherhood.