Thy two breasts are like two young roes that are twins, which feed among the lilies.
Thy two breasts - an image of the nutritive virtue in the Church. The bust is left open in Eastern dress. The breastplate of the high priest was made of "two" pieces, folded one on the other, in which were the Urim and Thummim (lights and perfection). 'Faith and love' are the double breastplate (1 Thessalonians 5:8), answering to 'hearing the Word' and 'keeping it,' in a similar connection with breasts (Luke 11:27-28).
Like two young roes. He reciprocates her praise (Song of Solomon 2:9). Emblem of love and satisfaction (Proverbs 5:19).
Feed - (Psalms 33:2).
Among the lilies - shrinking from thorns of strife, worldliness, and ungodliness. Roes feed among, not on the lilies. Where these grow there is moisture, producing green pasturage. The lilies represent her white dress (Revelation 19:8).