There are no empirical data supporting thought transference, prognostication, anything relating to any other sides whether glimpsed or imagined; on the other hand, altruism is (evolutionarily) adaptive. Love is an emotion, and most emotions are pretty well mapped in the brain. No, we don't know the exact details of which molecule and which neuron, but we do know that it is molecules and neurons. So what? Not knowing everything is certainly not evidence for deities.
If you are sure that the entire natural world can be explained by natural law, you can be sure there are no deities involved. You can then be an atheist, not an agnostic.
Who was it said he wasn't agnostic or an atheist, he's acrostic? It's all a puzzle to him!