 If your whole prayer life, the whole motive that consumes you is entirely about self, there's an issue there. So when we pray out of jealousy and envy, that's an issue. That hinders prayer. When you pray for ministry growth because you're competing with other ministries, that hinders your prayer. When you're praying for selfish reasons, maybe you're praying from the place of greed. Maybe you're praying from the place of pride and you're simply asking God for things so that your status can be boosted so that others can look at you in awe so that others can look to you as someone who's important. To pray like that is to pray from impure motives.