Love your brother and sister as your soul;
protect them as you do the pupils of your eyes.
A tall order? Read this commentary for insight:
The first Letter of John is a good example of the link between the themes of light and of love: “Whoever pretends to be in the light, yet hates their neighbor, is still in darkness. Whoever loves their neighbor dwells in the light, and they are not fallen. But whoever hates their neighbor is in darkness. They walk in darkness, and they know not where they go, for the darkness has blinded their eye.”
Love and light cannot be separated. Hatred makes us blind and unhappy. “Whoever does not love, dwells in death,” as John says elsewhere. They dwell already in hell, closed upon themselves, with no desire for the desire of Other.
This is a spiritual autism that is surely even more painful than psychological autism. For those who love, everything exists more vividly; the Other is seen in the light, and thus our fellow human beings can be revealed as precious, like the pupil of our own eye, a mirror that allows us to see and know ourselves.