The man who agrees with us that some question, little regarded by
others, is of great importance in our lives can be our Friend, in the
grandest sense. These are Friends who do things together, but often
things more inward, less widely shared, and less easily defined;
they're still hunters, but of some immaterial quarry; still
collaborating, but in some work the world does not, or does not know
how to, take account of; still travelling companions, but on a
different kind of journey, a fantastic inner voyage. Hence, we
picture lovers face to face, but true Friends side by side; their eyes
look ahead together.
That is why those pathetic people who simply "want friends," because
they're lonely, can never seem to find or make any. The very
condition of having Friends is that we should want something else
besides Friends, together. Where the truthful answer to the question
"Do you see the same truth?" would be "I see nothing and don't care
about the truth; I only want a friend to be with me." no deep
Friendship can arise - though Affection of course may. For there
would be nothing for the Friendship to be "about"; and Friendship MUST
be "about" something. Those who have nothing, not even a dream, can
share nothing; those who are going nowhere constructive, nowhere
purposeful, can have no fellow-travellers, it seems.
-- C.S. Lewis, in "The Four Loves"