forgotten name, forgotten meaning

worry has arrived
he sits at the open door
to my tired mind
waiting, not coming in

ivory teeth grind together
in thought as a
small bird
flies through the door

he is a robin,
perched precariously on an old oak
that has managed to grow inside
the unlocked door

worry looks in
in wonder, in confusion,
as the bird breaks
into song

the rhythms wraps around
the unwanted figure
until he
is gone

and i am free
of the thought of someone
at my door
in the shadows, the closet

of the people in 
the peripheral blur
in the idea that their thoughts
change me.