I have never let the thoughts of an afterlife effect how I live my life while I am alive... to do so would really have the wrong intentions in my heart
To be good in this life so I could bask in the glory of the afterlife would make me pretty shallow in my own eyes.
Instead I decide to try and bring the concept of "on earth as it is in heavan", so that way, if I die and there is no afterlife it doesn't matter... I have at least put my best efforts into making my time here as good for me and those around me as possible.
