Dr Hershey,
Thank you
I'm glad it helped you. I like the sound of your class.
Kundalini Yoga is very dynamic and you feel more like you've ran a marathon in comparison to Hatha. Always feel energised and invigorated. After Hatha I feel more medative and peaceful.
The Breath Of Fire plays a big part in Kundalini Yoga and I think its that that adds the invigorating aspect.