Jesus makes it clear that we need to obey God. If we all do it, we would all be saints and have peace in the world. Therefore, obedience to God is the hurdle we are to overcome. Seeking to attain union with God is the way to meet that challenge. The key to success is to surrender yourself to God. If God is unavoidable, surrendering to him is in order and becomes unavoidable too. Once you attain union, you might think that you have reached the climax, but it's somewhat anticlimactic in the sense that you now find obeying God to be no sweat at all. In fact, it's exactly what you want to do.