Across the Universe (in search of a cause)

I was musing over the film "Across the Universe" and a heavy-hitter message hit me. The film illustrates that everyone has, or is looking for a cause. Character's in the film that profess to fight war as their cause are merely looking for women, men that patronize cowardice and sleaze are actually courageous, but when the main character's cause rejects him he says "I don't have a cause". He says this in vain however, as he continues to fight for his love and purpose.

I like that.