tummo training with no prior experience

here's a 5-day tummo retreat with lama lobsang, requiring "no prior experience or particular beliefs"

http://www.tulkulamalobsang.org/index.php?page=tourplan&menu=international&id=89

I'm intrigued by this, but I thought tummo was an advanced practice requiring preparation. I'm curious what the experienced vajrayana practitioners of this board think of this.

thanks

posted in Tibetan Buddhism - 17 replies