Yellow

Look at the stars
Look how they shine for you
And everything you do
Yeah, they were all yellow

I came along
I wrote a song for you
And all the things you do
And it was called yellow

So then I took my turn
Oh what a thing to have done
And it was all yellow

Your skin
Oh yeah, your skin and bones
Turn into something beautiful
You know, you know I love you so
You know I love you so

I swam across
I jumped across for you
Oh what a thing to do

Cos you were all yellow
I drew a line
I drew a line for you
Oh what a thing to do
And it was all yellow

Your skin
Oh yeah your skin and bones
Turn into something beautiful
And you know for you
I'd bleed myself dry for you
I'd bleed myself dry

It's true, look how they shine for you
Look how they shine for you
Look how they shine for
Look how they shine for you
Look how they shine for you
Look how they shine

Look at the stars
Look how they shine for you
And all the things that you do

I think that a song can mean different things to different people. It just depends on where they are in life. I have always thought that this song is a love song. The color yellow shines with optimism, enlightenment, and happiness. Yellow can carry the promise of a positive future. He says how the stars shine for her and the things she does. I think that he uses stars because there will always be stars, and always be his love for her. He is so in love with who she is, that everything is yellow, or filled with happiness.
Sometimes yellow is the color represented for sacrifice. In this song, he explains how he would do anything for the one he loves. He even says that he would bleed himself dry for her. This could mean that she is sick (possibly kidney failure= body literally turning yellow) and needs him...im not really sure. Either way, it is about how he would sacrifice everything for her. Everything about their love is yellow and he would do anything to see her shine.
Some say that "I drew a line for you" is a reference to drugs. However, I think that it is about boundaries and drawing a line to separate the things that he used to do before her.