Human beings are plenty loving

[Diana]

I would agree that most humans can be loving. But as David_1 pointed out, to whom. And why?

I imagine "light" to be "awareness." A person who is closer to 2D awareness may have "love" for a progeny or family (tribe/herd). But as the person grows in awareness, this light expands to include love for more of existence (other herds, peoples, all living things, the planet, etc.).

So you see gradations of love based on the envelope of awareness. If the envelope of awareness is based on survival, the person may make judgments about other life forms while fiercely protecting its "own." As awareness/light expands love becomes more universal and inclusive, and less personal (nesting, carrying on the species {procreation}, herding for protection against predators). Along this trajectory, awareness may expand to realize all life forms are necessary to the bigger picture of survival—but here we are still in the personal stake of survival, and as humans we are apt to try and control it to that end.

When the envelope of awareness grows beyond survival and the need to control existence to ensure survival, it moves toward acceptance, but at the same time individual accountability and responsibility. It begins to resemble detachment, but at the same time inclusion. 

I see love as an energy and light as the medium through which it moves—something like that. I don't think love changes, but the application of love does though the channels made available by light/awareness.