Abraham had a strong affection for his son Isaac, and that was the point on which the Almighty tried him. Job fondly loved his seven sons, and God took them from him in one day. In this manner He treats all those who are dear to Him, that they may testify their love for Him, while He bestows great graces on them by this means.
I know that human nature cannot understand this. It thinks only of the grief and the loss, and cares for nothing else. But if God dwells in us, we must restrain our feelings, and make them subservient to reason and to His will. Whatever our suffering may be, we must not let it overwhelm us. Remember our Lord's anguish, which wrung from Him a sweat of blood, and made Him cry out: "Father, not my will but thine be done." If we would beknown as His disciples we must say the same, for as His servants on earth, and His companions in heaven, He will have none but those who take up their cross and follow Him, as sheep do their shepherd, even though the path lead to death.
--St. John of Avila, Letters, V