I love that.
I was 17 when I went to college (I moved 2 states away and then my mom remarried and moved all the way across the country...I was in western WA and she was in Miami) and my birthday is in October, so I had my first birthday well before I had really become accustomed to the whole dorm/college thing. I don't remember exactly what she sent that time (though I do remember her gift before our first finals), but she tended to send homemade (from scratch, as she always did) cookies. The trick to keep them fresh was that she wrapped them in both foil and plastic wrap (I think the plastic wrap was directly around the cookies), then put them in a tin, put the tin in a box, and sent it. They were SO good, and she always made enough to fill the tin so my friends loved her too. She also would make fresh pesto, put it in tupperware-type containers, FREEZE it, wrap it in plastic wrap and foil, then send it by a fast-shipping method to me. I do remember that was for a birthday, during my sophomore year. The friends who had visited my parents over our first Spring Break (see that mention of my mom moving to Miami, LOL) loved her pesto and so loved that birthday.
I was NOT a grownup adult in college; I was still very young, and having my birthday made to be like I was still at home was absolutely priceless to me. And, of course, when I went "home" it wasn't home, so there was no getting that back. So having my mom wrap me in hugs from far away, with the homemade stuff she made with love was just the absolute best.
Aw crud, crying. Dang I miss her. If only I had known I wouldn't have her very long, that I'd lose her when I had just turned 30... A good parent can be hard to find. (I know this because the *bad* parent is all I have left) Even from afar you can make them feel loved, and that's a very good thing.