The meditation flash mob was organized by Wake Up New York, a group of young adults that get together to practice mindfulness and meditation, inspired by the teachings on Engaged Buddhism of Zen Master Thich Nhat Hanh (Wake Up New York). Jenny Hamp said there were 400 or 500 people that evening, sitting in New York’s Union Square, summoned by a Tweet that read, “Wk up New York is hosting a meditation flash mob tonight @6:30pm in Union Square. Monastics will be there to join us!” They would meditate for thirty minutes and then “walk mindfully together,” as their invitation described, to an exhibition of Thich Nhat Hanh’s calligraphy works.