Nature, then living nature, human being, love. Without love, there will remain an "unattractive" disappointing outcome of evolutionary processes that is doomed to self-destruction.
Nature, through climate change, sends us a sign that if you do not behave correctly, I will take away your intelligence and give it to elephants. But it seems that humans think they should force elephants to give it up themselves, and if not, declare war on them.
Nature still patiently ponders: perhaps it would have been better to give intelligence to dolphins, not humans? And humans still enviously look at dolphins.
Approaching it rationally, we won't find any purpose to the Universe. But through a lens of irony? The Universe might have a purpose only in one case: the emergence of humans is a byproduct of its micro-processes. In other words, it's completely unaware of us. And if we elevate the degree of irony? It also knows nothing about itself.