"I am still determined to be cheerful and happy, in whatever situation I may be; for I have also learned from experience that the greater part of our happiness or misery depends upon our dispositions, and not upon our circumstances."
Not sure if any conformation of this can be found in the scriptures, but I'm fairly certain the "Free Credit Report Dot Com" tune is played non-stop in hell.
If you think about it, most of your friendships stay in the "humor zone", where silences are awkward and must be resolved with laughs. Deep friendships allow you to be yourself instead of just a comedian.