Hello Basma,
1 and 2 are one type of conflict that the kidney parenchyma (the glomeruli system) reacts upon with a loss of function.
The theme has to do with fluids (water, blood, beverage etc), usually a "too much" of a liquid, or that it is connected to danger, like the threat of drowning. One of my clients had a memory of  almost drowning in a lake as a child. Another one had a fear about the icy decks of the ferry he worked on. Another one had a partner who was an alcoholic. And another one drowned in tasks and challenges with the feeling of "not keeping her head above the water".
In the book you read several more examples on page 276.

We need mind-expanding methods when we are stuck in our thoughts. Mind-expanding means we get access to different parts of the brain and their functions, to new perspectives and to solutions we couldn't perceive. We can exercise that by looking up to the starry sky, or when we stand on a mountain top, or dive in the sea... From there, our problems look different. We can do this in our mind as well, like in self-hypnosis. 
Music can help us to get into different mental states, as can smells, and breathing methods (check out [https://www.youtube.com/watch?v=Al5hYLw8qzk|holotropic breathing]).
 And all over the world, certain substances were traditionally used to help with that, like teas, mushrooms and drugs such as cannabis. As I said in the session, I don't encourage anyone to use drugs on their own, but in a controlled therapeutic setting they definitively have a value to break free from ingrained negative patterns.

I hope this helps!