Jesus taught in parables to hide the truth from those who did not really want to know the truth. The other side of that coin, so to speak, is that Jesus used the parables to reveal the truth to those who want to know and live by the truth. This is the lesson of Mark's account of the Parable of the Soils in Mark 4:1-20. The difference between receiving the truth or not is found in the fact that the few who would learn from Jesus asked him to help them understand.
In light of this, we learn a general principle of discipleship. Whatever "The Question" is in our lives at the moment, bring it to Jesus in order to learn the true answer.