Our view of our existence is from now backwards. It is as though we are sitting on a tiny twig at the very growing edge of a huge tree, trying to see down a fibre-optic cable in the core of that twig. The route of the cable seems inevitable in that direction, it leads irrevocably from us down the main trunk to the origin, so we believe that it was installed as a unique link. We are unique and the pinnacle of the growth of the tree. There must be a reason for it.
But if we were looking in the opposite direction, we would find it very hard to follow a route which led to our current position. There are trillions of branches, one for each possibility from the first moment the universe existed. Before each point where one outcome happened rather than another, it was not possible to predict which it would be.
Had any of the divergences gone a different way, the universe would now be on a different twig. We would not be on that twig, looking back, and we would not know that we were not there.
The very fact that we can wonder at our existence we take (provisionally) as evidence that we do exist, but it is not proof that there was any intention that we exist, any more than a photo of a lucky lottery winner is proof of an "intention" that that person would win millions. There are many other possible and totally random scenarios where they did not.
(Yes, I know that the lottery winner is chosen by a complicated algorhythm which was devised by a clever brain and someone will now say that the chance happenings that took us from chaos to a wonderful universe must have been devised by an even more clever one.)