I'm deaf and blind

I am a blind deaf man
My eyes and ears describing sentries
Buffered brokers bearing codes.

I see nothing, no sights beset me
For my eyes do catch them first
And tell me what they see.

I see not that mountain there
But my guards did catch it, 
Shouting to me about soaring heights and sweeping foothills. 

Glistening peaks that tower tall,
Slopes that grope at heaven,
Mist that lingers like the better friend.

I didn't hear that song just now,
But my flanking guards did, hard at work,
Whispered to me of a haunting tune that did beset them.

Clanging tunes of string that shook,
Quivering voices warning and pleading,
Words that hinted, still, of silence.

I sit serene and sentries search
For sights and sounds to seek and sing
They whisper softly to me, and all I catch is code.