How can I imagine this game? (goals etc)

I'm considering buying Caves of Qud, but I'm a bit confused about its goals. The only ''real'' roguelike I've played extensively is ToME4, where I could easily look up the dungeon order and focus on grinding and learning. Is there anything similar here to guide me?

Many people describe it as an open world game where you find your way to do things, but I tend to struggle without clear goals to pursue.

Any help would be amazing, and bonus points if you can compare to Tome4