I recently had a session I found particularly erotic. 
  
I was a mystery domme.   
  
The submissive wore a mask, he didn't know which mistress he was with. 
The whole session was conducted in silence to conceal my identity. 
  
Then it occurred to me at that moment, that it was a powerful form of sensory deprivation. Every gesture and sensation became heightened and focused on with an intensity that isn't present when constantly engaged in conversation. It gave the session a trance like, meditative atmosphere. 
  
I thought it was interesting as I noticed some submissives tend to be nervous so they frantically attempt to avoid awkward moments with constant chatter and humor- which I love, but and it can pull their focus away from truly experiencing a session. Interacting with our eyes and body language can quiet the anxiety and bring them into the present.  
  
Have any of you experienced a silent session?