"Once you have begun to seek God with true devotion and with all your heart, then you cannot possibly imagine that you already conform to His will. So long as your conscience reproves you for anything that you have done contrary to nature, you are not yet free: the reproof means that you are still under trial and have not yet been acquitted. But if you find when you are praying that nothing at all accuses you of evil, then you are free and by God’s will have entered into His peace. If you see growing within yourself a good crop, no longer choked by the tares of the evil one; if you find that the demons have reluctantly withdrawn, convinced that it is no use making further attacks on your senses; if 'a cloud overshadows your tent (cf. Exod. 40:34), and 'the sun does not bum you by day, nor the moon by night' (Ps. 121:6); if you find yourself equipped to pitch your tent and keep it as God wishes - if all this has happened, then you have gained the victory with God's help, and henceforward He will Himself overshadow your tent, for it is His. So long as the contest continues, a man is full of fear and trembling, wondering whether he will win today or be defeated, whether he will win tomorrow or be defeated: the struggle and stress constrict his heart. But when he has attained dispassion, the contest comes to an end; he receives the prize of victory and has no further anxiety about the three that were divided, for now through God they have made peace with one another. These three are the soul, the body and the spirit. When they become one through the energy of the Holy Spirit, they cannot again be separated. Do not think, then, that you have died to sin, so long as you suffer violence, whether waking or sleeping, at the hands of your opponents. For while a man is still competing in the arena, he cannot be sure of victory."
- St Isaiah the Solitary
Reference: Philokalia: Volume 1