Before, folks really didn't know what happened to the dead. Even those who were raised from the dead, like the Widows Son with Elijah, died again. So there was no certainty.
With Christ's Resurrection and bodily return to heaven, we know positively that there is life after death. And, moreover than that, since Christ is Still Alive (at the Right Hand of God the Father) that there is Eternal Life.
The only question will be the quality of Eternal Life. With Faith in Christ, it is Eternal Life, Love and Joy. Without Christ, it really is not life, not love, not joy and worse.
Better is life in Christ, follow Him.
With Christ's Resurrection and bodily return to heaven, we know positively that there is life after death. And, moreover than that, since Christ is Still Alive (at the Right Hand of God the Father) that there is Eternal Life.
Indeed. we know that we are immortal. Death does not ultimately claim us.
It also means that we will truely get to someday meet our maker and thank Him for the joy of this life.