Intermediate Yoga?

Our chillin's have been extolling us with testimonies about Yoga's many health virtues.  They say that online video instruction make learning at home a viable way to go.  Creaking bones yesterday pushed me to Google some up.  I was watching one when MoSup,  hearing it from the other room, came to investigate.  She quickly noted " you can do that with your clothes on, you know."  Still, I was—and am—spellbound by the demonstration.  And, this is intermediate level?!?  Not even in my best years was I capable of reaching that level of body control without hurting myself.  If  synchronized swimming can be an Olympic sport (isn't it?), then so too should this.