Hua, Hsuan, Ven., commentary, Heart Sutra & Verses without a Stand, Burlingame, California: Buddhist Text Translation Society, 1980 (0917512278), 2nd ed., 2002. www.BTTSOnline.org     www.Amazon.com   117 pages. $7.50. Considered the most popular Sutra in the world today, the text of the Heart Sutra explains the meaning of Prajna-paramita, the perfection of wisdom that is able to clearly perceive the emptiness (shunyata) of all phenomena (dharma). Each line in the text is accompanied by an eloquent verse by the Venerable Tripitaka Master Hsuan Hua and his commentary, which contains an explanation of most of the fundamental Buddhist concepts.