The original Conferences were numbered at ten. Only later were other conferences included in this work to satisfy the needs of the brethren. Part II, Conferences 11 - 17, was written for Saints Honoratus and Eucherius and covered topics not previously mentioned at length in Part I. The former saint desired to establish his cenobium after the traditions of the desert fathers, while the latter desired to travel to Egypt, as Saints John and Germanus had previously done. Part III, Conferences 18-24, was written for the monks Jovinianus, Minervus, Leonitus, and Theodore who had established several cenobium in the Gallic provinces in and around modern day France. St. John Cassian comments that the first ten conferences were "put together haphazardly at the command of the holy Bishops Helladius and Leontius" (Conferences, Part II Preface, 1.2). All this being said St. John intended Abba Isaac's two conferences (IX & X) on prayer to be the fulfillment of a promise given in the Institutes, as well as the culmination of the first eight conferences.
"The aim of every monk and the perfection of his heart direct him to constant and uninterrupted perseverance in prayer; and, as much as human frailty allows, it strives after an unchanging and continual tranquility of mind and perpetual purity" (9.2.1). Establishing the virtues simply and humbly on the Gospel Rock is necessary before pure, interior prayer can be achieved. The beginning of pure prayer is acquiring the virtues and casting off the vices. Thus, a virtuous life and ceaseless prayer in the heart are inseparable.
"The aim of every monk and the perfection of his heart direct him to constant and uninterrupted perseverance in prayer; and, as much as human frailty allows, it strives after an unchanging and continual tranquility of mind and perpetual purity" (9.2.1). Establishing the virtues simply and humbly on the Gospel Rock is necessary before pure, interior prayer can be achieved. The beginning of pure prayer is acquiring the virtues and casting off the vices. Thus, a virtuous life and ceaseless prayer in the heart are inseparable.