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Welcome back to On the Light. I'm your host, Susan Johnson.

My guest today is Nikki Costello, a longtime student and teacher of Iyengar Yoga. Nikki reflects on her first encounters with Light on Yoga, her studies with Mary Dunn and Gulnaz Dashti, and the profound experiences that shaped her understanding of the teachings at the Ramamani Iyengar Memorial Yoga Institute in Pune.

Along the way, Nikki shares stories of Guruji and Geetaji that illuminate not only their brilliance as teachers, but also the depth of care, discipline, and transformation that lie at the heart of the guru-disciple relationship. She speaks about lineage, mentorship, oral tradition, and what it means to carry the teachings forward—not as a collection of techniques, but as a living practice that continues to evolve within each of us.

This is a conversation about transmission, responsibility, and the enduring vitality of the teachings.

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Please enjoy my conversation with Nikki Costello.

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