We should not think it strange that Christians endure affliction and various forms of sorrow, patiently awaiting through many trials and temptations whatever their Master gives. For they have heard Him say: “Truly I tell you, that you who are near Me shall weep and lament, but the world shall rejoice. Yet after a little while I will visit you through the Paraclete and drive away your despondency; I will renew you with thoughts of heavenly life and peace with sweet tears, of which you were deprived for a short time when you were being tested. I will give you the breast of My grace, as a mother feeds her baby when it cries. When your strength fails in battle I will fortify you with power from on high, and I will sweeten you in your bitterness. I will look upon you, and your hearts will rejoice at My secret visitation; your affliction will be turned to joy, and no one shall take that joy from you’ (cf. Jn. 16:20-22).”
St. John of Karpathos (The Philokalia Vol.1; Faber and Faber pg. 323).