When we do bad things to others, bad things will eventually happen to us. When we do good things to others, good things will eventually happen to us. If we do only good things we will eventually run out of bad things due us and only good things will happen to us, and vice versa. This spiritual law forces us to learn life's lessons whether we want to or not. The more knowledge of the spirit we acquire while on earth, the further and faster we will progress in the spirit after death.
Life is significant.
It determines how far we can go into the light after death. Life is not about pursuits but about people. Each moment is filled with great opportunities. We are not to waste our time while here on earth. We are to spread love and understanding.