Some further thoughts on our connectedness, particularly in the Spiritual Life:
The ontological unity of humanity is such that every separate individual overcoming evil in himself inflicts such a defeat on cosmic evil that its consequences have a beneficial effect on the destinies of the whole world. On the other hand, the nature of cosmic evil is such that, vanquished in certain human hypostases [persons] it suffers a defeat the significance and extent of which are quite disproportionate to the number of individuals concerned.
A single saint is an extraordinarily precious phenomenon for all mankind. By the mere fact of their existence – unknown, maybe, to the world but known to God – the saints draw down on the the world, on all humanity, a great benediction from God. The Staretz writes:
Because of these people, I believe the Lord preserves the world, for they are precious in His sight, and God always listens to His humble servants and we are all of us all right because of their prayers.
Quote taken from Archimandrite Sophrony’s Saint Silouan the Athonite.
My own thoughts: In your prayers, remember, the life you are saving (or asking to be saved) may be far more than your own! The Righteous Abraham prayed even for Sodom and Gomorrah. Had just ten souls been found they would still be on the map. Even so, God in His mercy heard him and spared the eight righteous souls that were there. By the mercies of God, the prayers of the saints sustain the world.