As typified by the word 'kamusabi' (to behave like a god), the view that things that are old or aged are sacred and god-like just for being old and aged, overlaps with the interpretation that yokai (Tsukumogami - god of great age and experience) is an aged object or something that lived for a long time that has become possessed.
「神さび」という言葉に代表されるように、古いものや老いたものは、それだけで神聖であり神々しいとされてきた価値観も、妖怪（九十九神）が古い物や長く生きた物の憑き物という解釈と重なる。