I wonder...
I would go with both the sense of accomplishment and the social circle based on how often we mingle with people socially.
On the other hand, there is a whole aspect that can be used for this discussion; the spirituality aspect. This would include the religious affect we might get by performing any religious oriented action (Example; prayer).
However, back to spirituality; is having the feeling of being alive enough to know we are alive? how do you measure your status of being alive...
personally, I sense I am more of a full-time zombie / part-time alive.
It's quite relaxing at the time being...