In this episode, Avril, Rogier, Noor aand Marc undertake quite a challenging endeavor as they try to find an answer to the one billion dollar question : what is mastery ? They do their very best to approach the subject from quite a few different angles and perspectives. A thought-provoking, multi-faceted and fun discussion, that beautifully matches the tone from the day of the Calendar of Oneness : light-hearted profundity.