We can experience joy, if we ask for it - John 16:23-24
And in that day ye shall ask me nothing. Verily, verily, I say unto you, Whatsoever ye shall ask the Father in my name, he will give it you. Hitherto have ye asked nothing in my name: ask, and ye shall receive, that your joy may be full.
Up to this point in the book of John, the disciples had come to Jesus with questions and requests. Jesus told them that there was coming a day when He would no longer be with them in bodily form. No doubt, when they first heard that they had concern. He told them they could ask the Father, through prayer, and He would answer them. Because of receiving answered prayer, they would have fullness of joy.