I am trying to remember a sci-fi book series but have a very vague memory of the stories’ details. I have the sense that the series was written after 1990 but I am not sure about that.
There is a jungle planet where a group of people / families (possibly slaves) are being escorted by a kind of military or mercenaries across the planet for some purpose. Then another single person / group on the same planet somehow break away and gain some kind of occult power which transforms them, making them very powerful. They end up fighting and killing members of the main group / military personnel. Then they have a plan to carry their power / occult religion across the cosmos.
Also, I remember before being sent trekking across the planet there was a city / docking station for spaceships with a Governor and some form of government.
Concurrent story in the book there is a sexual relationship between like a princess and some spaceship captain and something about mining asteroids operation.
Not a lot to go on I am sure and possibly not accurate either but hopefully enough to go by to get the name of the book / series.