Just as a mother loves and protects her only child at the risk of her own life, cultivate boundless love to offer to all living beings in the entire cosmos. Let our boundless love pervade the whole universe, above, below, and across. Our love will know no obstacles. our heart will be absolutely free from hatred and enmity. Whether standing or walking, sitting or lying, as long as we are awake, we should maintain this mindfulness of love in our own heart. This is the noblest way of living.
~From the Buddha's Discourse on Love