This is an incredibly sweet idea. "Open when you need to know how much I love you; open when you don't feel beautiful; open when you need a laugh; open when you miss me; open when you're mad at me; open when you need a date night, etc.
Illustration by Jean Sole. Not for a supporting article but it is an interesting representation of fear. Fine details in the hair of the bear bring the character to life whilst the girl being coloured reveals that the fear is only her imagination.