Justification is famously called the article upon which the church stands or falls. It is the article upon which The Lutheran Reformation stood boldly and confessed the Scriptural truth that we are made right before God by grace through faith on account of Christ alone.
I think the problem with the idea of eternity is that we do not have any direct experience of it, but we encounter enough of its possibility to be unsettling.
Miracles, for all their wonder and encouragement, rely on the dazzling of our senses to work. Because miracle-faith produces sensory-faith, it is of a poor quality.
It is often the case that when dealing Divine, we find ourselves befuddled. For as relatable and surprisingly vulnerable God is as the man Jesus, he seems, at times, to retain a certain aloofness, a type of distance.