Do you know the troparion to the Great Martyr Theodore the Tyro? “He was offered as a sweet bread to the Trinity.” What does this mean? How do you understand these words? For bread to be sweet and pleasant, first of all, the flour must be well sifted, separated from any impurity, from everything unsuitable, for the bread to be pure and delicious. In the same way, for our heart to be a sacrifice pleasing to God, we must first cleanse it from the passions that are to be found in it, we must uproot them, and then it will be acceptable.

Troparion to the Great Martyr Theodore the Tyro - Tone 2

Great are the accomplishments of faith, / For the Holy Martyr Theodore rejoiced in the flames as though at the waters of rest, / Offering himself as sweet bread to the Trinity. / So by his prayers, O Christ God, save our souls!

St. John of Kronstadt
From the book: Conversations of Archpriest John of Kronstadt with Abbess Taisia, Sretensky Monastery, 2022