Listen to Jesus. He has quite the monologue going in this chapter of John, but one part might get skimmed over too quickly.
“Hitherto you have asked nothing in my name . . .”
In other words, “I know you haven’t come to my Father in prayer and set your needs before Him yet.”
“. . . ask, and you will receive that your joy will be full . . ..”
Read that again. ASK. SO YOUR JOY WILL BE FULL.