According Catholic theology, what does the joy of heaven consist of?

If there is a principal joy, what is it?

Anecdote: I remember riding on a bus and a man going of saying to the effect that if heaven consisted of praising God for all eternity, it could wait.

  • 1
    Is there an overarching theme behind this question and the other question you asked about hell? Maybe you should ask the central question. – Double U Jan 30 '15 at 19:19
  • @DoubleU No sure what you mean. – user13992 Jan 30 '15 at 19:51