You want to see the glory of God? Then you need to pray.
Prayer is one of those obvious things in the Christian life. We all know we should do it. It doesn't cost us anything to do it and its pretty easy to pray. Yet, I haven't met too many people who would give themselves an "A" for their prayer life.
One of the biggest reasons we don't pray more is because we don't believe. If we really thought prayer worked, if we really thought we desperately needed to pray all the time, if we really believed we were weak creatures who had a special link to the God of the universe, we would pray more.
Pastor Kevin DeYoung wrote a blog post about this topic and it really hit home for me. If you've got two minutes, check it out.