Now thanks be to God who always leads us in triumph in Christ, and through us diffuses the fragrance of His knowledge in every place.
For we are to God the fragrance of Christ among those who are being saved and among those who are perishing. (2 Corinthians 2:14-15)
St Cyril of Alexandria also using the imagery of fragrance to describe Christ and the spiritual life writes:
The words of the blessing, I believe, denote the spiritual aroma in Christ, like that of a field or a meadow blooming abundantly,
spreading a beautiful and pleasant fragrance from its spring flowers.
So Christ described himself to us in the Song of Songs, saying, ‘I am a flower of the plain, a lily of the valleys.’ [Song 2.1]
He was, indeed, a lily and a rose sprung up from the earth, for the sake of humankind.
Since he knew no sin, he was the most Godlike of those inhabiting the whole world, bringing forth a pleasing aroma through the perfection of his deeds.
Therefore, it likens Christ to a field blessed by God,
and rightly so, as he is the fragrance of the knowledge of God the Father. (GLPHYRA ON THE PENTATEUCH Vol 1, p 27)