The explanation of Abbot Germanus why we wanted to stay in Egypt, and were drawn back to Syria.
To this Germanus: We used to think, said he, that we should go back to our monastery abundantly filled not only with spiritual joy but also with what is profitable by the sight of your holiness, and that after our return we should follow, though with but a feeble rivalry, what we had learnt from your teaching. For this our love for our Elders led us to promise them, while we fancied that we could in some degree follow in that monastery your sublime life and doctrine. Wherefore as we thought that by this means all joy would be bestowed upon us, so on the other hand we are overwhelmed with intolerable grief, as we find that we cannot possibly obtain in this way what we know to be good for us. On both sides then we are now hemmed in. For if we want to keep our promise which we made in the presence of all the brethren in the cave where our Lord Himself shone forth from His chamber in the Virgin’s womb, 2015 and which He Himself witnessed, we shall incur the greatest loss in our spiritual life. But if we ignore our promise and stay in this district, and choose to consider that oath of ours as of less importance than our perfection, we are afraid of the awful dangers of falsehood and perjury. But not even by this plan can we lighten our burdens; viz., by fulfilling the terms of our oath by a very hasty return, and then coming back again as quickly as possible to these parts. For although even a small delay is dangerous and hurtful for those who are aiming at goodness and advance in spiritual things, yet still we would keep our faith and promise, though by an unwilling return, were it not that we felt sure that we should be so tightly bound down both by the authority and also by the love of the Elders, that we should henceforth have no opportunity at all to come back again to this place.
Compare on the Institutes IV. c. xxxi.