Yes time is definitely limited and sadly we only realize it when we experience a massive loss like the death of a loved one. I recently lost my uncle whom I didn't talk to much and neither liked much. Now that he has passed away and that we have come to known of his many acts of benevolence that he did without telling anyone about them, I feel that maybe I should have made an effort to talk to him more and realized that I was judgmental of him because he was different than the rest of the world. I never really realized that he was spiritual enough to have understood his purpose in the world and was following it. A lack of communication was the reason why I and all my other relatives and even his family never really understood him.