Love And Suffering

Πᾶσα θλῖψις κατὰ Θεὸν, ἔργον ἐστὶν εὐσεβείας ἐνυπόστατον· ἡ γὰρ ἀληθινὴ ἀγάπη δι' ἐναντίων δοκιμάζεται. Ἅγιος Μάρκος ὁ Ἐρημίτης, Περὶ Νόμου Πνευματικοῦ  Source: Migne PG 65 913b

All suffering for the sake of God is certainly a most pious work, for true love is proved in adversity. Saint Mark The Ascetic, On The Spiritual Law.