This is surely very clear when you come to think of it. If you want to be made free of a certain circle for some wholesome reason—if, say, you want to join a musical society because you really like music—then there is a possibility of satisfaction. You may find yourself playing in a quartet and you may enjoy it. But if all you want is to be in the know, your pleasure will be short lived. The circle cannot have from within the charm it had from outside. By the very act of admitting you it has lost its magic.
Once the first novelty is worn off, the members of this circle will be no more interesting than your old friends. Why should they be? You were not looking for virtue or kindness or loyalty or humour or learning or wit or any of the things that can really be enjoyed. You merely wanted to be “in.” And that is a pleasure that cannot last. As soon as your new associates have been staled to you by custom, you will be looking for another Ring. The rainbow’s end will still be ahead of you. The old ring will now be only the drab background for your endeavor to enter the new one.
— - C.S. Lewis I’m not so big on the god stuff anymore, but I think about this speech all the time. I seek a circle of genuine friendship and I hope I never mistake being popular or in an exclusive group for having friends. Read the whole thing at the link, it’s really thought-provoking.