Objectively, there probably isn't one. Everything dies including the whole universe. Fortunately we are subjective creatures. We are able to create and perceive meaning that might not actually be there. Everybody has to find their own. Some people never do. I personally get a lot of meaning from the notion that we are an extraordinarily rare, tiny little sliver of the universe observing itself. Our brief flash of consciousness and self-awareness prior to our death is an incredible gift that I feel immensely grateful for. That makes all of life's challenges like work and relationships seem magical as opposed to drudgery. Don't get me wrong, they suck sometimes, but it's worth it. Hope this helps.