Subtle Change (Including the Forest of Transition and Dissatisfaction Dance)

Can you explain
 This subtle change
 That dull, sweet ache
 That takes my mind
 To a place where nothing can see
 Dissatisfied, as you drift back to what you were
 Before, before you came here
 I'm losing some pieces, here at the end
 And I can't find exactly where I came in
 Drifting backwards into nothing
 Oh, my god it's watching me and moving in me
 I feel its sickness in me
 I see sickened entropic vision
 Death above me, and rot below
 I feel the change
 Can you explain
 This subtle change
 That dull, sweet ache
 That takes my mind
 To a place that I can't remember
 What could it be
 This all-enveloping white
 It wants to decompose me
 They want this living husk
 Eyes move in silence
 Through a blanket of night
 The air here is stagnant
 This wood void of light
 Not for the eyes of silence
 Withered in this wicked copse
 They only seek to change me
 From man to fetid rot
 Speaking to me, the only voice I hear
 Caresses me with its cold and static logic
 Moving backwards through a forest of transition
 I'm drifting backwards into nothing
 Can you explain (I don't think they can hear me)
 This subtle change (Is the forest screaming?)
 Can you explain (Stark dissatisfaction)
 I can't remember why I came here