In this case, it's Sophia's eye contact. She had a steady, attentive gaze when she was born - immediately, she sought our eyes (and nipples).
But now, at five weeks, she's constantly, curiously looking us in the eye. And with a smile.
When I grin, she grins. When I look startled, she furrows her brow.
What's delightful is the sudden realisation of a new, burgeoning self; an attentive, unfurling little psyche. And this draws me out of myself, toward this fresh, developing person.
Perhaps Iris Murdoch was right: love and sight are intimately wedded to the good in life. Goodness requires that we learn how to genuinely, generously see - and with love.