Sexual intercourse is more than a physical act; it is a symbol of a spiritual relationship and the expression of the complete oneness of two persons in married love… It is...the means by which they are confirmed and nourished in that union. Sexual intercourse is the physical establishment and confirmation of that oneness. The true dignity of sex is in its ability to enhance this personal unity between two persons who have committed themselves to each other in love and marriage. In sexual intercourse the couple becomes joined in an indissoluble unity, called in the Bible “one flesh” (Dwight Small).