Making or having a sin is natural as we are all human being, a sinner! We already have sin during our birth!
The sinners are natural to us, but no one sins sincerely before repentance, everything is ultimately the ultimate repentance, not just making mistakes whatsoever to repent.
We are just the ones we love in life, sometimes we just ignore them, just like they do not have our eyesight, We can not imagine that they are important to us, we can actually think of them when they're not.
In this situation we can imagine that they are important to us when our Loving life is out of our sight, before we can say that she is here, but when they are on our side we do not care about them even if we think sometimes with us, but by the time they leave we can realize how important they are to us, and we can say that they would be here, that they might have been with us, the more in our hearts, Let's regret why we do not even let them know how much they love us, so it's always going to be overwhelming.