Aurelio Vicari

Pareidolia (/ˌpær.iˈdoʊ.li.ə, ˌpɛr-/;[1] also US: /ˌpɛr.aɪˈdoʊ.li.ə, -ˈdoʊl.jə/)[2] is the tendency for perception to impose a meaningful interpretation on a nebulous stimulus, usually visual, so that one sees an object, pattern, or meaning where there is none.

In his notebooks, Leonardo da Vinci...