__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."
Registered: Mar 2017
Location: Sith shrine below the Jedi Temple
I'd say DE Sidious.
__________________ The Sith are not placid stars but singularities. Rather than burn with muted purpose, we warp space and time to twist the galaxy to our own design. - Darth Plagueis