Therefore I am

This is true
This is what they meant
All the poets, writers and musicians
They all tried to capture this
Nothing can compare
Nothing is as bright
As light, as pure
You are my cure
For sadness, loneliness and fear
That's why we're here
This is how it's meant to be
There's no doubt in my mind
This can only be defined
By one word we hear in every song
One word, only four letters long
One word, too many times lied about
One word, I find so hard to pronounce

I don't know what the future has in store
I just need to hold your hand
There's one thing I know for sure
I love therefore I am