True left vs actual left

Hi,

This is my first post on VE (awesome website)and I have a question: I've read a couple of times where people refer to say true left as opposed to actual left in trip reports. What is the difference? On a recent Berg hike a couple of us discussed this topic and we came to a conclusion, not sure it is right though. Could the experts shed some light on the subject please.

A couple of us will be hiking in the Mnweni area next weekend and I read that the veld is very dry, could anybody advise water availability in this area. Plan is to go up Mnweni pass, sleep in a cave on the escarpment and then walk down to the cultural centre. First night sleepover planned for ChiChi bushcamp, second night either Ledgers cave or the other cave near Rockeries pass.

Many thanks to all of you for all the information on this website, it is incredibly valuable.

Regards
Riaan

Thanks for the advice guys.
Smurfatefrog, we came to this conclusion so you have confirmed it, thanks
Intrepid, thanks for the advise on water, I might just take a bladder with as well.