True Love by Thich nhat hanh
This is the foundation of true love. In true love, there is no distinction between the one who loves and the one who is loved. Your suffering is my own suffering. My happiness is your happiness. Lover and beloved are one. There's no longer any barrier. True love has this element of the abolishing of self. Happiness is no longer an individual matter. Suffering is also no longer an individual matter. There's no distinction between us.
Another way to translate upeksha is inclusiveness. In true love, you don't exclude anyone. If your love is true love, it will benefit not only humans, but also animals, plant, and minerals. When you love one person, it's an opportunity for you to love everyone, all beings. Then you are going in a good direction, and that is true love. But if you love someone and you get caught up in suffering and attachment, then you get cut off from others. That's not true love.
That deepest gift mindfulness can bring us is the wisdom of nondiscrimination. We are not noble by birth. We are noble only by virtue of the way we think, speak, and act.