We should not hold on so strongly to those who are going to leave us some day anyway. We should not feel excessive attachment for them. We have to keep it in moderation. But there is One who will never leave us, One who will never perish. God will never leave us, not in the kingdom of heaven, nor in the kingdom of hell, nor in this world. And since judgment is in His hands, He is the only attachment we must have. If we hold on to only that one attachment, then we will have joy throughout our lives and even at the time of death. On Judgment Day we will know that joy, because we will be with Him.