Equanimity and Joy are two of the 'immeasurable states.' When we experience them there are no limits to how vast they extend. I gave a talk this week on Equanimity, which is on my podcast or streaming here.
But here is an inspiring expression of limitlessness in the face of hardship. Get out your kleenex for this one.
http://www.youtube.com/watch?feature=player_embedded&v=W86jlvrG54o
(Thanks, Bob.)