this song is a mixture of emotions from three people, in toms case it is about the love/hate relationship with music and in scott and matts case it relates to girls, you can relate it to whatever you wish...
if you're interested the first verse is scotts, the second verse is matts, the two pre-choruses are toms and the chorus is everyones...enjoy!

v1
do it to me again
you were my only friend
didn't work in the end
you treat me like a kid
was it something I did
was I the lowest bid

pre 1
forever increasing days
endeavour to replay
your number once again

chorus
slept through your missing youth
you're either dumb or in search of proof
or in search of proof

v2
in all the things I do
all I can see is you
and we can make it through
and sometimes we cry
this love will never die
don't turn to suicide

pre 2
remember look deep inside
I tremble in perfect time
assemble for my kind

outro
I'm in search of proof