Sadness allows us to channel our emotions when we have losses or face painful situations. I believe that if we are not able to feel sadness we cannot feel true joy either.
And I totally relate with you feeling sad at being away from your son. We know that they are well and that is a peace of mind and we even feel happy for them but we carry our sadness in silence missing their hugs and touch.
A big hug, Lizzie
Absolutely true Eli, we learn to appreciate special times even more!
As you say, while it's very comforting knowing your child is doing well, it comes at a cost, having to leave behind everything familiar.
And for the parents, especially Mom...