A careful packing job is affection or professionalism made useful to unseen handling.

Packing well is a decision about people you will never meet. Tape, padding and protected corners all anticipate rough handling by strangers in a warehouse at two in the morning, and none of that care will be witnessed by anybody who could thank you for it. It is one of the purest forms of doing something properly. The recipient only ever sees whether it worked.

When you next send something, add the extra layer nobody will notice. Do the same with work that passes through other hands. Quality aimed at unseen conditions is what makes things arrive intact.