A teacher hopes it's this:
Remember to breathe!
Breathe deeply, hold your breath a second and then breathe out all the way. Repeat.
Deep breathing relaxes you. It heals your body and mind. It fights illness, even serious illness. It keeps you alert and helps you sleep. It feels good.
Of course, a teacher hopes you remember how good it feels to learn, laugh, share, grow, empathize, achieve, discover and cultivate your specific gifts--and capture it all in a Keepsake Box.
And...remember to breathe.