Abbot Christopher Jamison writes:

The first Christian monks and nuns were inspired by the example of St Antony. They lived in the deserts of the Middle East in the fourth and fifthccenturies and became known as the desert fathers and mothers, living in loose associations and gradually founding more structured monasteries. The wisest of them acquired the title abba for men and amma for women, meaning father and mother respectively, which later become abbot and abbess… They did not use the language of freedom, a language that has come to dominate modern discourse. Their central concern was purity of heart, which we might describe as freedom of spirit…

The desert fathers compared purity of heart to the target that a javelin thrower aimed at in the ancient games; a small target may be difficult to hit but it can be done and the effort required draws out the best from the thrower. So purity of heart describes the condition of human beings at their best, when the human capacity for love finds complete expression devoid of any selfish thought. To arrive at this state of being is demanding because human beings are continually tempted to behave selfishly, but the example of many saints shows that it can be done.

Finding Happiness: A monk’s guide to life, Christopher Jamison

So freedom of spirit is found in freedom from identifying with the thoughts of the self – in laying down the self as the centre of experience. Heidegger’s sense of “releasement” (Gelassenheit) from our manipulative human wilfulness then leads to contemplative openness to the mystery of Being (Sein).

But so much of the time we do identify with our self-centred patterns of thought – with the “self” on which our thought is centred – and become entangled once again. We miss the target…

Now, in the Jesus Prayer, “Lord Jesus Christ, Son of God, have mercy on me, a sinner” that last word gives pause to many who see it, in the context of too many clumsy sermons, in a narrowly moralistic light. But the Greek – the Jesus Prayer developed among those early desert monastics of whom Abbot Christopher writes, and was first written down and disseminated in Greek – word is αμαρτωλόν (harmartolón), and αμαρτωλόν carries the sense of “to forfeit by missing the mark”. For the Desert Mothers and Fathers, sin was just that, missing the target of purity of heart, of freedom of spirit; it is not in any direct sense somehow “transgressing a list of naughty-things-to-be-avoided”.

We slip so easily into self-identifying thoughts; freedom of spirit consists in freedom from this self-identification. Note, though, that it is not freedom from thoughts themselves. We can do little about those – they seem to be often no more than artifacts that the brain throws off in its everyday functioning – but we can learn not to identify with them, And that is what practice is for.