Ānāpānasati (Pali; Sanskrit: ānāpānasmṛti; Chinese: 安那般那; Pīnyīn: ānnàbānnà), meaning 'mindfulness of breathing' ("sati" means mindfulness; "ānāpāna" refers to inhalation and exhalation), is a form of Buddhist meditation now common to the Tibetan, Zen, Tiantai, and Theravada schools of Buddhism, as well as western-based mindfulness programs.

According to tradition, Anapanasati was originally taught by the Buddha in several sutras including the Ānāpānasati Sutta. (MN 118) Anapanasati means to feel the sensations caused by the movements of the breath in the body, as is practiced in the context of mindfulness.

Anapanasati is a core meditation practice in Theravada, Tiantai, and Chán/Zen traditions of Buddhism, as well as a part of many modern Western mindfulness-based programs. In both ancient and modern times, anapanasati by itself is likely the most widely used Buddhist method for contemplating bodily phenomena.

The Anapanasati Sutta specifically concerns mindfulness of inhalation and exhalation, as a part of paying attention to one's body in quietude, and recommends the practice of ānāpānasati meditation as a means of cultivating the seven factors of awakening: sati (mindfulness), dhamma vicaya (analysis), viriya (persistence), which leads to pīti (rapture), then to passaddhi (serenity), which in turn leads to samadhi (concentration) and then to upekkhā (equanimity). Finally, the Buddha taught that, with these factors developed in this progression, the practice of ānāpānasati would lead to release (Pali: nibbāna; Sanskrit: nirvana) from suffering (dukkha).

Ṭhānissaro Bhikkhu, also known as Ajaan Geoff, (born 1949) is an American Theravada Buddhist monk of the Dhammayut Order (Dhammayutika Nikaya), Thai forest kammatthana tradition. He is currently the abbot of Metta Forest Monastery in San Diego County. Ṭhānissaro Bhikkhu is a notably skilled and prolific translator of the Pāli Canon. He is also the author of many free Dhamma books.

Ṭhānissaro Bhikkhu was born Geoffrey DeGraff in 1949 and was introduced to the Buddha's teaching on the Four Noble Truths as a high schooler, during a plane ride from the Philippines. After graduating in 1971 with a degree in European Intellectual History from Oberlin College, he travelled to Thailand, where he practiced meditation under Ajaan Fuang Jotiko, who'd studied under Ajaan Lee. He was ordained in 1976 at Ajaan Lee's Wat Asokaram, where Ajaan Lee's nephew, Phra Rajvarakhun (Samrong Gunavuddho), served as Preceptor for his ordination. Later, he took residence at Wat Dhammasathit in Thailand, where he continued studying under Ajaan Fuang.

Mike Nichols (born Michael Igor Peschkowsky; November 6, 1931) is a German-born American television, stage and film director, writer, producer and comedian. He began his career in the 1950s as one half of the comedy duo Nichols and May, along with Elaine May. In 1968 he won the Academy Award for Best Director for the film The Graduate. His other noteworthy films include Who's Afraid of Virginia Woolf?, Carnal Knowledge, Working Girl, Closer and the TV mini-series Angels in America. He also staged the original theatrical productions of Barefoot in the Park, Luv, The Odd Couple and Spamalot.

Nichols is one of a small group of people who have won an Emmy, Grammy, Oscar, and Tony Award. His other honors include the Lincoln Center Gala Tribute in 1999, the National Medal of Arts in 2001, the Kennedy Center Honors in 2003 and the AFI Life Achievement Award in 2010.

Mike Nichols was born Michael Igor Peschkowsky in Berlin, Germany, the son of Brigitte (née Landauer) and Paul Peschkowsky, a physician. His father was born in Vienna, Austria, to a Russian Jewish immigrant family that had been wealthy and lived in Siberia, leaving after the Russian Revolution and settling in Germany around 1920. His mother's family were German Jews. His maternal grandparents were anarchist Gustav Landauer and author Hedwig Lachmann. Nichols is a third cousin twice removed of scientist Albert Einstein, through Nichols' mother. He moved to the United States to flee the Nazis on April 28, 1939. His father, who had changed his name to Paul Nichols, had successfully set up a medical practice in Manhattan and the family lived near Central Park. He became a naturalized citizen of the United States in 1944 and attended public elementary school in Manhattan (PS 87). After graduating from Walden High School, Nichols briefly attended New York University before dropping out. In 1950, he enrolled in the pre-med program at the University of Chicago.

Ajahn Brahmavamso Mahathera (known to most as Ajahn Brahm), born Peter Betts in London, United Kingdom on 7 August 1951, is a Theravada Buddhist monk. Currently Brahm is the Abbot of Bodhinyana Monastery, in Serpentine, Western Australia, the Spiritual Director of the Buddhist Society of Western Australia, Spiritual Adviser to the Buddhist Society of Victoria, Spiritual Adviser to the Buddhist Society of South Australia, Spiritual Patron of the Buddhist Fellowship in Singapore, and Spiritual Patron of the Bodhikusuma Centre in Sydney.

Peter Betts came from a working-class background and went to Latymer Upper School. He won a scholarship to study Theoretical physics at Cambridge University in the late 1960s. After graduating from Cambridge he taught in high school for one year before traveling to Thailand to become a monk and train with the Ajahn Chah Bodhinyana Mahathera. Brahm was ordained in Bangkok at the age of twenty-three by the Abbot of Wat Saket. He subsequently spent nine years studying and training in the forest meditation tradition under Ajahn Chah.