Nah ... you're not losing it! Far from it. Nice job.

till darkness consumes him
his thoughts there remain

Great lines!

Wow, this piece is very effective and unique. Whole poem is greatly written, and it contains very vivid imagery.
My favorite lines are:

-.alone in the dark
he drowns in the echoes
.echoes of silence
whisper of winds
.whispers of thoughts-

Atmosphere of the whole piece is somehow haunting.
5/5 from me