Timothy Radcliffe’s review of God, Sexuality and the Self: an essay “On the Trinity” by Sarah Coakley (Books, 24 May) is interesting, particularly his focus on the insight that “the Spirit cracks open the human heart … towards a new understanding of the relationship between male and female”, in the light of Coakley’s “twoness, one might say is divinely ambushed by threeness”. There’s nothing like the birth of a child to feel “ambushed” as it were by grace on one’s marital union. A pregnancy even if unexpected is always truly planned by the Trinity who carries out the ambush via our sexual intimacy. Cardinal Nichols recently quoted Pope Francis who in February said we need a “deepened theology of the famil