Rigpa (also called Atiyoga or Dzogchen) in Tibetan Buddhism is the highest possible way of meditation. The purpose of Rigpa is to go beyond concepts like object, time and space. When doing so more and more one can experience Unity with everything. In Buddhism Rigpa is the highest meditation type. It is only taught to advanced students that attended many other classes. It seems an easy meditation, because it lacks concepts and techniques. But at the same time that is exactly why it is the most difficult meditation of all.
Petra about Rigpa: "Since 2007 I attended many Tibetan Buddhist teachings and workshops. In 2013 my Tibetan Buddhist Teacher Tulku Lobsang Rinpoche (www.tulkulobsang.org) granted me permission to pass on Rigpa to others. For me that was a very special moment and I feel grateful and honored that I am allowed to spread this beautiful meditation."