<human>: Give me the gist of the text in a nutshell

They bought the gift last Saturday, but I finally saw my mom today to give her the gift.

My mom opens the box to find a lovely snow globe for grandmothers. She goes "ooh, that's very pretty" and then realizes it plays music. She asked what song it played so we wound it up a little while I checked the bottom of the box. I told her that it played "wind beneath my wings" and she looked as though she was going to cry and said quietly that it was my aunt's favorite song. My aunt, her sister, passed away about 10 years ago. She loved the song because she was military and Bette Midler (I believe) did a USO show during the first gulf war and sang that song. 

I felt like crap because, had I been in the store with them to pick it out, I could have stopped them from getting that snow globe that plays that particular song.
<bot>: I gave my mom a mother's day gift that my son picked out and it made her cry because she misses her deceased sister.