Materialists live based on the possibility there is no life after death. They say we should live our lives to the fullest, because it's all we get. Being someone firmly anti-belief, I cannot agree with them. Because we do not know if there is a life after death, we can ascertain that the possibility + consequence ratio is in favor of spirituality. What I mean is, if there is no life after death, it is impossible to have any after-life consequence or reward based on what was done here. If there is a life after death, what you do here risks after-life punishment.

Heaven and Hell is a bunch of sillyness. The rest of spirituality remains true. One should focus on the inner, because the outer will definitely not pass to the next life. This is why things like lust and gluttony, pleasures of the body, are deadly sins.