It does seem a strange thing to count suffering as joy, yet there's a truth here in that suffering helps to build one's character. Some of the most beautiful people I know are those who have passed through the flames and come out strengthened. If it happens to clay, why shouldn't it happen to us.
The elder warned us not to pray while our hearts were steeped in unprayerful feelings, without thoughts wandering as they chose. Prayer is not a mechanical activity, but a confrontation, a conversation with the Holy Presence. Pray humbly, then, in awe of God.
How the elder loved nature! He loved it in three different ways: as angels, children, and sages love it. When he walked through the forest with us, we felt the power of his prayers. It was as though ranks of angels surrounded us. The elder said very little in the midst of nature, but if he did say something, then it was with such child-like joy and simplicity that his earthly age disappeared. Nature for the elder was a book of the holy revelations of God.