Day 5: Knowing my Father

I woke up alone 
a soft yet warm  light pierced through my eyes 
and the subtle sound of silver on ceramic played a rhythmic tune
...tap
...tap
...tap
it was my father 
I thought about what I knew about him
presumably a lot considering he is my father
presumably enough considering he is my father
presumably anything beyond his first name considering he is my father
but...
I don't know his middle name
I don't know his favorite color
I don't know what music he likes to listen to
I don't know what he does for work

I DO KNOW WHERE HE GOT HIS SLIPPERS
I bought them for him for christmas three years ago
it's one of the few gifts I've ever given him...
on my 6th birthday he gave me a pen 
on my 7th he gave me a tree
​on my 20th he chopped it down
he always gave me things 
he could try to take away from me
but...

I don't know his routine
or how many siblings he has 
I don't know his fathers name
I couldn't tell you about his mother
I'm not sure where he grew up
or if he went to school
I don't know his friends name
or if he has friends at all
how is it possible that I don't know him at all?