The Riddle-Five For Fighting这首英文歌里的主题是什么？

there was a man back in '95
95年的时候有个人
whose heart ran out of summers
他的心停止了跳动
but before he died, i asked him
在他死前，我问他
wait, what's the sense in life
等等，生命的意义是什么
come over me, come over me
过来，过来，他说
he said,
son why you got to sing that tune
孩子，你为什么要唱那首歌
catch a dylan song or some eclipse of the moon
找个鲍勃迪伦或者世散渣平克服洛伊德的歌（eclipse 是 pink floyd唱得一手歌）
let an angel swing and make you swoon
让天使旋转而使你眩晕
then you will see... you will see
然后你就会明白
then he said,
他又说，给你个问题，你去找到答案
世界的一切都有掘森个原因
包括你和我
here's a riddle for you
find the answer
there's a reason for the world
you and i...

picked up my kid from school today
今天去接了我的小孩
did you learn anything cause in the world today
你今天学了什么？因为在这个世界，你不可能生活在闭塞的城堡。
you can't live in a castle far away
now talk to me, come talk to me
告诉我，我们来谈谈

he said,
他说，我觉得自己长大了，但是我却又是最渺小
因为与周围相比，我们算不上什么
但是每个母亲的孩子都会有孤搜悄独的感觉
来和我玩吧
dad i'm big but we're smaller than small
in the scheme of things, well we're nothing at all
still every mother's child sings a lonely song
so play with me, come play with me

and hey dad
here's a riddle for you
find the answer
there's a reason for the world
you and i...

i said,

son for all i've told you
when you get right down to the
reason for the world...
who am i?

there are secrets that we still have left to find
there have been mysteries from the beginning of time
there are answers we're not wise enough to see

he said?you looking for a clue i love you free...

the batter swings and the summer flies
as i look into my angel's eyes
a song plays on while the moon is hiding over me
something comes over me

i guess we're big and i guess we're small
if you think about it man you know we got it all
cause we're all we got on this bouncing ball
and i love you free
i love you freely

here's a riddle for you
find the answer
there's a reason for the world
you and i...

大意就是寻找生命的意义，世界的意义。给出的答案是没有确切答案，听听歌，也许能感觉到。人虽然渺小，但感觉却是真实，因此，无论世界的答案是什么，我们的爱都将是我们生活必要的支持