Awesome, glad you enjoyed it!
Thats how i felt watching Sunn O))). You just can't even imagine what a show of theirs would be like until you are there. You can even watch live footage and still know nothing. I'm not sure if i looked away from the stage even once, hardly said a word during and even for a couple of minutes afterwarRAB.
I imagine Swans would be a similar experience but sadly, i've never had the pleasure.