Abba Agathon said, ‘A person is like a tree, bodily asceticism is the foliage, interior vigilance the fruit. According to that which is written (Matt. 3.10), it is clear that all our care should be directed towards the fruit, that is to say, guard of the spirit; but it needs the protection and the embellishment of the foliage, which is bodily asceticism.’
From the Trappist Daily Reflection https://www.trappists.org/2023/08/14/daily-reflection-for-august-14-2023/