Fullness of Joy is found only in Jesus: John 16:23-24

John 16:23-24: 23 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. 24 Hitherto have ye asked nothing in my name: ask, and ye shall receive, that your joy may be full.