NOTES for Co1 6:19
Much has been said and written about spiritual life in general and Christian spiritual life in particular. But what, after all, is the spiritual life of a Christian? It is at times very hard for us to answer this question, perhaps also because today spiritual life is often taken to mean many things that have no direct relation to it: theology, morality, religion itself, mystical experiences, and much else that, while connected with spiritual life and born from it, is still not identical with it. After all, by spiritual life it is most natural to mean the life of our spiritual "I," which in biblical language is usually called the heart; and it shows itself first of all as will and relationship. And our spiritual life is, above all, the relationships that bind us to God and to our neighbors. That is where the most interesting part begins.
The point is that, judging by numerous biblical witnesses, God agrees to build relationships with us only on His own terms. He imposes nothing on us; He only offers us Himself, but at the same time He requires that we let Him into our life unconditionally and absolutely. He is not satisfied with less. Then it turns out that, if we want to have normal, full relationships with God, we will have to give up belonging to ourselves. And if we dare to do this, our heart and our whole life, inward and outward, will be filled with the breath of God, that breath of the Kingdom about which the apostle writes. And then God Himself will return to us the life that we dared to give Him. He will return it in a fullness we would never have found without Him, without His help and without His participation.