By suffering we are able to give something to God. The gift of pain, of suffering is a big thing and cannot be accomplished in Paradise.
Pio of PietrelcinaThe more you are afflicted, the more you ought to rejoice, because in the fire of tribulation the soul will become pure gold, worthy to be placed and to shine in the heavenly palace.
Pio of PietrelcinaWhy should you worry whether God wants you to reach the heavenly home by way of the desert or by the fields, when by the one as well as by the other one arrives all the same at a Blessed Eternity? Keep far from you excessive preoccupation which arises from the trials which the good God wishes to visit upon you.
Pio of Pietrelcina