Varieties of Faith, although they weren't referring Tosh Raka, but Alkosh (Akatosh). Didn't make that very clear
Sorry.
He is depicted as a fearsome dragon, a creature the Khajiit say 'is just a real big cat'.
It would seem if the Dovah and Ko Po Tun were related in any way, the Dracolysis (I think that's what it was called.) would be much easier.
Also it seems as if a Dracolysis is an all-together different thing than ascending to god-hood, as all Aedra and Daedra can apparently manifest as any creature on Mundus including Dragons, but obliviously none of the dragons are actually god-like (with the possible exception of Alduin).
Also, whenever the Dragon of Time manifests, the "Dragon Breaks", something never mentioned in the Tiger King's snipet...