The sense of security provided by a dwelling comes not only from its physical aspects but also from the innate instincts of living beings. At the slightest disturbance, chicks instinctively hide under the wings of their mother, and kittens take cover in the shadows of their mother's belly. Whether born from a womb or hatched from an egg, the protection and shelter provided by a home or a maternal body are quite similar in many ways.
Once inside the cave, everyone felt a subconscious sense of relief. Bartlett felt his tense nerves relax, and hunger pangs began to emanate from his stomach.
In truth, adventurers generally possess robust constitutions (as the weak ones tend to be weeded out), including an impressive tolerance for hunger. Bartlett once survived for a week on a few berries and insects while fleeing and bleeding constantly.