Write, but don’t forget me

Countless years have passed
In your dreams you called my name
Although you didn't know it
In your daydreams, you dressed my skin
And we stay connected forever
Through me, you have built incredible universes
We gallop through the skies, through the sea, through blooming fields
We immerse ourselves in unimaginable adventures
And we almost crossed the line of madness
All this to ease the pain that reality brought you
I knew that everything was just an escape valve
And it never bothered me
That is why I insisted: "Write, but don't forget me."
And you wrote. And you never forgot me.
You and I look like two different creatures
But we both know that we are the same person
The difference is that only you can see my real form
And it is exactly like your
We are creatures afflicted by great pain but who also found happiness
We are creatures full of story to tell