what did dumbledore see in the mirror of erised

Dumbledore said he saw himself holding a pair of thick, woolen socks, but that was almost certainly a playful dodge. The more common interpretation is that he would have seen Ariana alive and his family whole again, because that was one of the deepest pains and desires in his life.

Why people think that

The Mirror of Erised shows a person’s deepest desire, not a literal prediction. Dumbledore’s “socks” line fits his habit of deflecting painful truths, while later interpretations and fan discussion point to Ariana and the loss that shaped him.

In short

• Officially, Dumbledore’s answer was: socks.

• Most readers think he was hiding a more emotional truth.

• The strongest theory is that he saw Ariana and his family restored.

TL;DR

Dumbledore probably joked about socks, but his real heart’s desire was likely to see Ariana and his family again.