Answer:
It suggest the grandmother is a comforting person.
Explanation:
The most likely comparison between a package and grandmother would be a positive one since grandmothers are almost universally considered to be a source of comfort, solace, happiness, and tenderness.
The idea of a soft and squishy package brings to mind a package that is fun to hold and that is comforting to the touch just like one of grandma's hugs.