He knows the deep red colour of his wife’s lips. When his wife moves her lips and speaks, he senses and hears her love for him. It is so good when his wife talks to him.
He knows her temples. They resemble a pomegranate. Here the husband is probably thinking of the inside of a pomegranate. There are compartments in a pomegranate and so her cheeks look like two compartments on the side of her face.
3 Your lips are like a scarlet thread, and your mouth is lovely. Your cheeks are like halves of a pomegranate behind your veil.