Praktikos and Chapters on Prayer
Πρακτικός; Περὶ προσευχῆς
Εἰ θεολόγος εἶ, προσεύχῃ ἀληθῶς· καὶ εἰ ἀληθῶς προσεύχῃ, θεολόγος εἶ.
Our renderingIf you are a theologian, you truly pray; and if you truly pray, you are a theologian.
What it is
Evagrius Ponticus (345–399), a student of Gregory of Nazianzus at Constantinople who withdrew to the Egyptian desert, composed the Praktikos — one hundred chapters on overcoming the eight logismoi (destructive thoughts) — and the Chapters on Prayer, 153 chapters that constitute the first systematic theological account of pure or imageless prayer. Together they form the psychological and theoretical foundation on which all subsequent hesychast writing was built. Evagrius's speculative theology (including the pre-existence of souls) was condemned at the Fifth Ecumenical Council in 553, so the Chapters on Prayer circulated throughout the Byzantine period under the name of Nilus of Ancyra; modern scholars have reattributed them to Evagrius, but medieval and early modern court readers knew them only under the pseudonym. The Praktikos appears under Evagrius's own name in the Philokalia.
Why it still matters
The 153 Chapters on Prayer are brief enough to read in a single hour but inexhaustible in reflection; used as a catechism of pure prayer — one chapter per sitting — they progressively map the discipline of the mind that every form of Christian contemplative prayer requires.
Kept alongside
Ascetical Homilies of Isaac the Syrian
Λόγοι ἀσκητικοί
Isaac of Nineveh (fl. 7th century), a Syriac monk of the Church of the East who briefly served as Bishop of Nineveh before withdrawing to the monastery of Rabban Shabur, composed homilies of extraordinary depth on prayer, silence, compunction, and divine mercy. They were translated into Greek at the Monastery of Mar Saba by Abbas Patrikios and Abrahamios — the precise date is uncertain but falls within the early medieval period — and subsequently into Arabic, Georgian, Latin, and Slavonic; a Slavonic translation from the 14th century is attributed in some sources to the Bulgarian monk Zacchaeus and in others to a disciple of Gregory of Sinai, with scholarly attribution remaining debated. Hesychast writers including Gregory Palamas and Gregory of Sinai drew explicitly on Isaac's homilies, and Seraphim of Sarov named them alongside the Philokalia among his most beloved reading.
Four Hundred Texts on Love
Κεφάλαια περὶ ἀγάπης
Maximos the Confessor (c. 580–662), the greatest Byzantine theologian before Gregory Palamas, composed four centuries — four sets of one hundred chapters — on love of God and neighbor as the summit of the Christian life and the royal road to theosis. The terse, aphoristic form was designed for memorization and meditation, and the chapters distil patristic wisdom — Evagrius, Gregory of Nyssa, Dionysios the Areopagite — into an integrated account of the ascetic and contemplative life. They form a substantial portion of Philokalia vol. 2 and were universally read in Byzantine monasteries; scholars have described them as among the most comprehensive treatments of deification in the Philokalic corpus. The text circulated at every Orthodox court touched by the Philokalic tradition.
On Watchfulness and Holiness (Pros Theodoulos)
Πρὸς Θεόδουλον, περὶ νήψεως καὶ ἀρετῆς
Hesychios of Sinai, abbot of the monastery on Mount Sinai (date uncertain, probably 8th–9th century; not cited in sources until the 13th century), addressed this extended treatise on watchfulness to a disciple named Theodoulos, arranged in two centuries of short chapters. It teaches that watchfulness is a method of 'continual fixing and halting of thought at the entrance to the heart,' providing the fundamental technique of hesychast mental prayer in its most distilled and teachable form. Nikodemos the Hagiorite initially identified the author with the 5th-century Hesychios of Jerusalem, but modern scholarship treats them as distinct persons of different centuries. The text appears in Philokalia volume one and reached its widest circulation through the Philokalic revival, which carried it into all the court and monastic networks touched by that collection.