Why are relations of activity called relations of activity? Does it simply mean that we do stuff together and are 'active together? Is there a deeper 'why' to this question?
For example like doing activites together is something like a teacher and student bond, a mutual one, in which being with each other serves to teach you and the other, as when both partners are being themselves, weak functions are taken care of and strong functions are taking care of?
Is there more to the activity? Is there a non-visible growth and work done under the superficial guise of mere activity? And if so, is activity mere?