I Am You And You Is Me

I am you and you is me,

Even if you want you can't flee.

There is light you can see me,

I am the darkness even if you can't see.

I am your desire,

I am not a liar.

Thought I am black,

There's nothing I lack.

Sometimes I am big and sometimes small,

I don't have a shape but I can still roll.

You have a name so do I,

My existence is you so people call me shadow.