විසුද්ධිමග්ග
විසුද්ධිමග්ග  is a Theravada Buddhist commentary written by බුද්ධගෝෂ හිමි approximately in 430 CE in Sri Lanka. It is considered the most important Theravada text outside of the Tipitaka canon of scriptures. The Visuddhimagga's structure is based on the Ratha-vinita Sutta ("Relay Chariots Discourse," MN 24), which describes the progression from the purity of discipline to the nibbana, considering seven steps.

Summary
It is composed of four parts, which discuss: 1) Sila (discipline); 2) Samādhi (meditative concentration); 3) The land of wisdom; and 4) Pañña (wisdom).
 The first part explains the rules of discipline, and the method for finding a correct temple to practice, or how to meet a good teacher.
 The second part describes samatha's practice, object by object (see Kammatthana for the list of the forty traditional objects). It mentions different stages of concentration.
 The third part is a precious description of the five skandhas (aggregates), ayatanas, the Four Noble Truths and the dependent origination (see: Pratitya-samutpada). This part shows a great analytical effort specific to Buddhist philosophy.
 The fourth part describes the practice of vipassana through the development of wisdom. It emphasizes different forms of knowledge emerging because of the practice.

Seven steps
This comparison between practice and "seven relay chariots" points at the goal. Each purity is needed to attain the next.
 Purity in terms of virtue
 Purity in terms of mind (that is, concentration)
 Purity in terms of view
 Purity in terms of the overcoming of perplexity
 Purity in terms of knowledge and vision of what is and what is not the path
 Purity in terms of knowledge and vision of the way
 Purity in terms of knowledge and vision 
 Unbinding through lack of clinging

See also
 Buddhaghosa
 Sila
 Samatha
 Vipassana

Notes

References

Printed Pali editions
 Hewavitarne Bequest edition, Colombo, Sri Lanka (Sinhalese script)
 Hanthawaddy Press edition, Rangoon, Myanmar (Burmese script)
 Royal Siamese edition, Bangkok, Thailand (Thai script)
 Pali Text Society edition, London, England (Roman script)
 Harvard University Press edition, Harvard Oriental Studies, Vol. 41, Cambridge, Mass., 1950 (Roman script)

English translations
 The Path of Purity, Pe Maung (trans.), Pali Text Society, London, 3 vols., 1922-31
 Bhadantacariya Buddhaghosa, Bhikkhu Nanamoli (trans.), The Path of Purification, BPS-Pariyatti Editions, Onalaska, WA (Buddhist Publication Society), 1999. ISBN 1-928706-01-0.
 Buddhist Meditation, Edward Conze (trans.), NB: Partial translation, 2002, ISBN 81-215-0781-2

Other translations
 der Weg zur Reinheit, Nyanatiloka & Verlag Christiani (trans.), Konstanz, 1952 (German)
 Sinhala Visuddhimargaya, Pandita Matara Sri Dharmavamsa Sthavira, Matara, Sri Lanka, 1953 (Sinhalese)
 Le chemin de la pureté, Christian Maës, Fayard 2002 (Français)

Other references
 Thanissaro Bhikkhu (trans.) (1999). Ratha-vinita Sutta: Relay Chariots (MN 24). Available at http://www.accesstoinsight.org/canon/sutta/majjhima/mn024-tb0.html. 
 Upatissa, Arahant and N.R.M. Ehara (trans.), Soma Thera (trans.) and Kheminda Thera (trans.) (1995). The Path of Freedom (Vimuttimagga). Kandy, Sri Lanka: Buddhist Publication Society. ISBN 955-24-0054-6.

External links
 The Path of Purification, Translated from the Pali by Bhikkhu Nanamoli - first 90 pages.

Pali Buddhist texts