Long As The Block Is Black

How, you ask, will I know you
Especially when I can't see you in my sleep
And I'm afraid to be with you
Only when you are gone, this shall I weep

Take my shape and then
Follow me, my childhood friend

Would I lie? I would die
If you walked into my room
Someday cry, someday smile
And say it's great to be alive
Should I stay? Should I go?
Indecision is my mind
My heart cries