As someone who lost a parent a few months ago, I know what it is like to feel the recent pain of loss like what you described. As far as the Bible is concerned, death (and other types of loss) is an outlier, an enemy, not part of God's plan. It seems to me, we were created with eternity in mind, and so when we know we are mortal we instinctively seek for the eternal. As you indicated, we can't necessarily prove beyond all doubt that there is an eternal life, but it it seems to me an eternal life is ultimately the only thing that makes any real sense of the loss we feel in our mortal state.
As someone who lost a parent a few months ago, I know what it is like to feel the recent pain of loss like what you described. As far as the Bible is concerned, death (and other types of loss) is an outlier, an enemy, not part of God's plan. It seems to me, we were created with eternity in mind, and so when we know we are mortal we instinctively seek for the eternal. As you indicated, we can't necessarily prove beyond all doubt that there is an eternal life, but it it seems to me an eternal life is ultimately the only thing that makes any real sense of the loss we feel in our mortal state.