I walk through a door

I walk through a  door
that opens for me
into the narrow labyrinth
of known smell and sounds.
As I proceed into the darkness
I can feel the walls closing on me.
In the blinding alley,
I can't see anything.
No sound emanates
other than my own heartbeats.
Still I carry on my exploration
hoping to see the end of the tunnel.
But somehow whenever I do this,
I come back to the same door
through which I had entered.
The deep secrets within me
remain buried in obscurity.