Translation of desliz

Think always positively. There will be very hard times where even the ones who are supposed to be the closest will say things that will disappoint you the most. Listen to them but with caution.
The writer describes this situation by putting the persons into a natural environment. On one side there was no shade and there weren't any trees, he says. This description can be interpreted.
In order to see it you have to complete a lesson. I attached a screenshot. I did not place any rating there, so that it will not demotivate some of the users, especially the fresh beginners.