Australian author and explorer Robyn Davidson gained notoriety in the 1970s for her solo trek across the hostile Australian desert with four untamed camels. Her book "Tracks," which tells her story, has enthralled readers worldwide. The notion that relationships are inherently difficult and complex is one of her main themes.

According to Davidson's theory of human connections, people are drawn to those who challenge them or otherwise complicate their lives. This isn't always a bad thing, though, because these difficulties can also give our experiences more depth and significance. She makes the implication that people in a relationship may find each other difficult to work with or demanding.

Consider two individuals attempting to traverse a desert together. Every step is difficult and demands a great deal of work. Because of the challenges they faced together, both people are likely to say they chose someone who made the journey more difficult but also more meaningful. This metaphor perfectly expresses Davidson's view of relationships as difficult but worthwhile endeavors.

Davidson's personal experiences and adventures that challenged her to go beyond what most people would consider easy or comfortable are the source of her insights. Her experiences traversing difficult terrain and her thoughts on it provide a unique perspective on human interactions and the process of selecting companions for emotional and physical journeys.