Orthodox theology sees in the Transfiguration a prefigurement of our Lord’s Resurrection and His Second Coming, and more than this – since every event of the Church calendar has an application to the individual spiritual life – of the transformed state in which Christians shall appear at the end of the world, and in some measure even before then. In the foreshadowing of future glory which is celebrated in this Feast, the Holy Church comforts her children by showing them that after the temporary sorrows and deprivations with which this earthly life is filled, the glory of eternal blessedness will shine forth; and in it even the body of the righteous will participate.
It is a pious Orthodox custom to offer fruits to be blessed at this feast; and this offering of thanksgiving to God contains a spiritual sign, too. Just as fruits ripen and are transformed under the action of the summer sun, so is man called to a spiritual transfiguration through the light of God’s word by means of the Sacraments. Some saints, (for example – Saint Seraphim of Sarov), under the action of this life-giving grace, have shone bodily before men even in life with this same uncreated Light of God’s glory; and that is another sign to us of the heights to which we, as Christians, are called and the state that awaits us – to be transformed in the image of Him Who was transfigured on Mount Tabor.
– Father Seraphim Rose
SOURCE: Holy Transfiguration, Baltimore