@Chozo_Slayer
I already done both, and tbh I mostly js wanted the desolate dark so I could get descending dark, as it makes boss runs much easier with a pure spell build (but that aside i did get thrown off by stalking devout quite a bit)
@Inosukma_Hashiballs Those are two of the harder areas in the game I'm not gonna lie. Soul sanctum isn't required to beat the game but deepnest is because a dreamer is there but the boss of deepnest isn't on the required path. When you do go through deepnest, take your time and prioritise healing as much as possible. A lot of things can catch you off gaurd there so be careful.