In ancient Greek mythology, Mount Olympus was the 'dwelling place' of the gods. [=the place where the gods lived]
He 'dwelled' [='lived'] in the same town for years.
There is no need to 'dwell on' the past.
(..) Honor and glory, love of oneself, even shame. I only care about the will of the gods. Only then can everything worldly pass away, can the voices of the gods be heard. And then their spirit dwells in me, and I feel the ability to heal and prophecy. And take on the sins of the world... Upon myself. (..)2016 TvShow: Vikings Title: Portage Season: 4 Episode 8