Lama Tsultrim receives the first visitation from Machig Labdrön telling her to find and reestablish Machig’s lineage. Machig transmits the first of three termas called “Machig’s Transmission of the Ultimate Meaning” to Lama Tsultrim.

Charlotte Rotterdam becomes an authorized teacher by Lama Tsultrim. 

Since the mid-1990s she has studied Tibetan Buddhism. Charlotte received the title of Magyu Lopön, lead teacher of Magyu: The Mother Lineage at Tara Mandala from Lama Tsultrim in 2016, and Dorje Lopön Vajra Teacher in 2023. She is an Instructor and Director of the Center for the Advancement of Contemplative Education at Naropa University.

Pieter Oosthuizen becomes an authorized teacher by Lama Tsultrim. He has been teaching various practices and retreats in Lama Tsultrim’s lineage in the U.S. and abroad for close to two decades, offering a blend of incisive insight and genuine compassion. In addition to Lama Tsultrim, Pieter studied with Namkhai Norbu Rinpoche, Lama Tharchin Rinpoche, Adzom Paylo Rinpoche, and others. He is a member of the Tara Mandala Board.

Charlotte and Pieter are co-leaders of the Boulder Tara Mandala Sangha.