To reveal all that He wants to say, Jesus desires a hearer who is already reaching out to Him. This is why prayer is essential to the study of Scripture or for seeking guidance. Jesus' discernment is always correct. (Deut 29:2-4; John 8:31-32; Luke 24:27; Acts 2:25)
Prayer is a great way to see the Lord moving. It's encouraging to be "concerned about the interests of others", pray about it, and watch the Lord answer. I'm getting a charge out of it.