We set goals. These goals may be too impossible to reach but we know, if we give our best, we can. Sometimes just getting a glimpse of the ultimate goal helps in motivating yourself to go on. However, we can not always be fortunate to see just a inkling of it. The same goes with our faith in God and in our home in heaven. We may lose hope because it might not be really real but we know that Jesus is the proof, his coming into life again tells us to keep going.
Keep going, this goes with whatever goal you have in mind.