What would the other mysteries be? (Spoilers)

[Mari]

Here perhaps is a little philosophical game. In the fifth book, the Department of Mysteries has twelve rooms, but we learn about only six of them:

Death.
Time.
Space.
Clairvoyance.
Thought.
Love.

What do you think are six more of the great mysteries that deserve rooms?

 

[Peder]

How about Faith and Hope.
And the biggie, Evil.

 

[Peder]

What no more?
How about Existence?
Two rooms left.