From 1997-2001, Alan Wallace taught in the Department of Religious Studies at the University of California, Santa Barbara, where he held classes on Tibetan Buddhism, culture, and language, as well as on the interface between science and religion. After leaving UCSB in June 2001, he once again spent six months in a solitary contemplative retreat in the high desert of California.
In 2003 he established the Santa Barbara Institute for Consciousness Studies, and during the decade that followed, he gained international renown as a teacher of Buddhist meditation, psychology, philosophy, and the interface between Buddhism and science. During this time he published Buddhism and Science: Breaking New Ground (Columbia University Press, 2003), Contemplative Science: Where Buddhism and Neuroscience Converge (Columbia University Press, 2007), Hidden Dimensions: The Unification of Physics and Consciousness (Columbia University Press, 2007), Mind in the Balance: Meditation in Science, Buddhism, and Christianity (Columbia University Press, 2009), and Meditations of a Buddhist Skeptic: A Manifesto for the Mind Sciences and Contemplative Practice (Columbia University Press, 2011). He returned to solitary retreat from December 2012 through June 2013 in Santa Barbara, California.
Beginning in 2010, he began teaching eight-week retreats once or twice a year, first in Phuket, Thailand, then in Araluen, Australia, and later at the Istituto Lama Tzong Khapa in Pomaia, Italy. These retreats have gained international following, and most are still available online from the Santa Barbara Institute.