Mindfulness is the cognitive skill, usually developed through meditation, of sustaining meta-attention of the contents of one's own mind in the present moment. Mindfulness derives from sati, a significant element of Hindu and Buddhist traditions, and is based on Zen, Vipassanā, and Tibetan meditation techniques. Though definitions and techniques of mindfulness are wide-ranging, Buddhist traditions describe what constitutes mindfulness such as how past, present and future moments arise and cease as momentary sense impressions and mental phenomena. Individuals who have contributed to the popularity of mindfulness in the modern Western context include Thích Nhất Hạnh, Joseph Goldstein, Herbert Benson, Jon Kabat-Zinn, and Richard J. Davidson.