Delson Armstrong was born on 9 March 1990, in Mumbai, India. He moved to the United States in 1995 and grew up in New York. His spiritual journey began at 13 when he was introduced to Hatha Yoga, feeling an immediate connection. He attended Pathways World School from 2003-2006. In 2006, he traveled across India, studying in Haridwar, Rishikesh, and Uttarkashi, delving into Advaita Vedanta and texts such as the Yoga Vasishta, Yoga Sutras, and Bhagavad Gita.

From 2006-2009, during his spiritual journey, Delson was initiated into the lineages of Ramakrishna Paramahamsa, Nisargadatta Maharaj, Lahiri Mahasaya, and Paramahamsa Hariharananda. He practiced neti-neti self-enquiry and studied Tripura Rahasya, following Ramana Maharishi's Jnana teachings. He also absorbed the philosophies of J. Krishnamurti and U.G. Krishnamurti. Returning to the US in 2009, he pursued a writing career, ghostwriting for Hollywood studios and New York publishers.

Living in San Diego from 2013-2019, he launched the Source Living meditation app, mentored by Greg Halpern. He studied Dzogchen and Mahamudra under Lama Lena and completed an online retreat in 2016 with David Johnson, author of the book "The Path to Nibbana." Authorized to teach Tranquil Wisdom Insight Practice in the American Forest Buddhist Tradition by Bhante Vimalaramsi in 2017, he was titled Dhammachariya (Dhamma Teacher) in 2021. In 2023, Forrest Knutson, a Kriya Master and author of Mastering Meditation, authorized him to teach Kriya, and he founded the Freedom of Mind Organization, promoting inter-lineage collaboration and offering free meditation and wisdom teachings.

Delson has mastered the samadhi levels in the Yoga Sutras, the six kriyas in Hariharananda’s lineage, and the jhānas, achieving Nirodha Samapatti. Humble in his attainments, he refrains from declaring enlightenment, preferring to serve as a teacher, mentor, guide, or coach without labels. Unattached to any school, Delson teaches Dhamma and Kriya, contributing to neuroscience studies on meditation. As a "Dhamma Nomad," he relies on "gurudakshina" or student generosity, teaching where invited and focusing on the intersection of meditation, psychology, and neuroscience to alleviate suffering.