A mixture that cannot be easily distinguished between the different parts. Distillation is one of the only ways to remove the parts from each other. For example, in a fruit salad you can easily pick things out, but in jello you cannot take the sugar out.
In Nectar in a Sieve, Nathan can be described as a flat and static character.
The target for an audience for an open letter is a specific individual! For more information go to: https://en.wikipedia.org/wiki/Open_letter