Introduction[]
| “ | Occlumency is the defence of the mind against external magical penetration. An obscure branch of magic, it can be highly useful to witches and wizards. | ” |
From the Story[]
Harry Potter and the Order of the Phoenix[]
Discovered in chapter 26, Seen and Unforseen[]
| “ | Professor Snape gives Harry private Occlumency lessons in his office once a week during term time after the Christmas holidays. | ” |
Discovered in chapter 27, The Centaur and the Sneak[]
| “ | Before he leaves the castle, Professor Dumbledore tells Harry to study Occlumency as hard as he can, and to practise it particularly hard before sleeping so he can close his mind to bad dreams. | ” |