“The entire Cosmos thus participates by representation in the preparation of the matter used by the Church sacramentally and in other ways. And it in this fashion that the entire cosmos offers its praise.
With specific reference to the Eucharist, the wheat and the grapes are the offering of the community that is the Cosmos, the offering of the dust clouds in space, the stars, the Earth and other planets, of bacteria and fungi, of plants and animals.
This offering is transformed into bread and wine by human labor and skill, and it receives the Word of God and becomes the Eucharist, an offering to God by man, the priest of the Cosmos.
Man depends on the Cosmos for the matter that makes up his and her body and for the matter that is used sacramentally; reciprocally, the Cosmos depends on Man to complete its own offering.
Thus the seventh-century saint Leontius of Cyprus wrote:
Through heaven and earth and sea, through wood and stone, through relics and church buildings, and the Cross, and angels and men—
through all creation, visible and invisible, I offer veneration to the Creator and master and Maker of all things.
For creation does not venerate the Maker directly and by itself, but it is through me that the heavens declare the glory of God; through me the moon worships God, through me the stars glorify him,
through me the waters and showers of rain, the dew and all creation, venerate God and give him glory.
In the Eucharist we offer, in this piece of bread and in this cup of wine, the entire Cosmos and every living creature including ourselves—everything from the tiniest particles of matter to the farthest reaches of space, as well as the fruits of human labor in all places and all times.
We thus come to see that the Eucharist is central to the Cosmos. And it is the Eucharist that enables us to recognize more clearly that the Cosmos is transparent to Christ, who shines through all matter.”
(George Theokritoff, Toward an Ecology of Transfiguration: Orthodox Christian Perspectives on Environment, Nature, and Creation, Kindle Loc. 2934-49)