I think “ups and downs” captures it all. Anxiety on drop off day over how he’ll fit in, replaced by pride in seeing how he’s been able to make new friends from around the world. Trepidation over his ability to take on the academic rigors of a highly selective university, replaced by the results he’s worked so hard to achieve. The anticipation of having him home for summer, replaced by the excitement of hearing “I just got offered that summer research position I’ve hoped for, so I wont be home for summer”. And so it goes……