So happy to see this here! Yes, I also loved the spiritual aspect in the series. I loved the way the Druids were portrayed - they were shown to be gentle people for the most part. They were shown to be people who lived simply, knew magic but only used it for good. Yes there was that one episode with the guy who used Morgana to get the crystal... but he was very much in the minority.
I really loved it when Alator acts for Merlin against Morgana in the caves - so incredible! My favorite Druid scene is when that silly Borden is trying to get the Dragon's egg and he goes to the Druid's place in the woods to steal the second part of the Treskallion. He thinks he has snuck in .. and turns around to see them all just standing quietly looking at them. They just tell him.. take it. They offer no struggle.
I'm so glad that the series portrayed Druids in a good way. Another reason to want more Merlin!