K-PAX 的導演其實還蠻有良心的, 片子快結束有一段 Prot 講的話, 似乎將整部片的精神道盡了. 如此, 看這部片還需要解謎嗎? 好像已經不需要了.
這段話很重要, 但是很容易看著看著就讓它走過去了, 原文摘錄如下: (依照慣例需要看的人請反白)

The universe will expand, then it will collapse back on itself,
and then it will expand again.
It will repeat this process forever.
What you don't know is that when the universe expands again,
everything will be as it is now.
Whatever mistakes you make this time around,
you will live through on your next pass.
Every mistake you make you will live through again and again, forever.
So my advice to you is to get it right this time around,
because this time is all you have.