 Why did Mia begin to feel defeated and tired?
The ancient rule was sink or swim—swim in the miasma of a planet without spaceflight, or sink to utter destruction! Either your arches and calves ache or every time you step you think you're going to trip on a piece of fluff and break your neck. When the sun disappears, somehow you wonder in your stomach if it's really going to come back. Considering how short a time it was in which the colonies were established, there was not time to set up industry, so they had to have draft animals. I don't know how many of those planets had animals that could have been substituted but, even if they had, they would have had to be domesticated from scratch.
 She didn't understand the planet she was dropped in
 She was out of food  She'd been riding for over a week  She missed her family  She didn't understand the planet she was dropped in