His struggle to light a fire represents the literal and metaphorical flicker of human consciousness trying to remain lit in a void. Themes of Redemption and Will
Yossi seeks a "hidden tribe," a trope of colonial-era exploration.
Yossi returns not with the "gold" or "tribes" he sought, but with a hollowed-out, essential version of himself.
The film focuses on the "small" horrors—foot rot, parasites, and infection—rather than just large predators.