In your opinion, what do you think the real purpose of life when in the end we just die? Do you believe we exist for a reason or just because of chances?

My attitude is that we essentially “just exist” but determine our own purpose. I see the argument that we don’t matter in the grand scheme of things and everything is pointless. However, I choose to believe that me being a good influence to family and friends and developing my hobbies does matter. In five hundred years that phone call to my grandmother won’t matter and won’t be remembered but if it makes her smile today then I made a small positive difference that did matter.