Saint John of Kronstadt

I haven't completed any books recently, so here's a quote from My Life in Christ, by Saint John of Kronstadt:

Everything that constitutes me man (the soul), lives solely by God, and only in union with Him, whilst when the soul separates itself from God, then it experiences extreme distress. But the life of my soul consistes in the peace of my spiritual powers, and this peace proceeds exclusively from God. There is, it is true, a carnal peace also, but it is a delusive one -- the forerunner of spiritual storm -- of which the Lord says: "When they shall say (to men), Peace and safety, then suddenly destruction cometh upon them"; but spiritual peace, which proceeds from the Spirit of God differs, as heaven from earth, from such carnal peace. It is heavenly blissgiving, "Peace I give you," often said the Lord to His disciples, giving them His peace, and the Apostles also gave "peace to believers," and wished them God's peace as the highest blessing, because God's peace constitutes the life of our soul, and witnesses to the union of our soul with God. The absence of peace in the soul -- disturbance, by which all the passionate conditions of our soul are distinguished -- is spiritual death and the sign of the action of the enemey of our salvation in our hearts.