Not a Mirage. You want to live by philosophy here's a nice quote for ya.
"Besides the unexplainable, Science can explain everything. We usually leave the unexplained in God's hands. But this... This is pretty solid man!!" There's a nice quote from a doctor(The one who treated my cousin's skin cancer! He's a nice guy). The Human body simply works this way. Like a machine, it does its job. You cannot argue with a Machines purpose. Loce exists and benefits Human survival more than a delusion or fantasy. This can be proven through Biology and stats. I am not bound by what I see as Correct and right because the quote you just used normally refers to Moral Correctness. Good and Evil. There is no wrong or right in the way an animal works. They reproduce and grow. That is their major purpose. Survival. This is not arguable or bound by belief because it's in our DNA to survive. And Love is a Subfactor in that. Right or wrong, yes or no, Belief and Correctness... They do not apply to our Biological makeup. Simply the purpose and drive to survive. Delusion cannot be as beneficial to human survival. That is simply factual.