Despite the fact that Rafters are generally considered to be roaming beasts they possess living root like appendages that burrow deep into the very ground of the Shadowlands when the creatures sleep or rest. Recent JOBE research papers on these beasts discuss the belief held by the Yuttos that these roots are capable of absorbing the very essence of the other creatures that inhabit the Shadowlands. Various Yuttos lore apparently claims that all living creatures produce a spiritual residue that is shed just like skin or hair, and this spiritual energy is taken into the ground and then in turn absorbed by the Rafter's roots.

The roots of the Flux Rafter are said to be particularly susceptible to absorbing the spiritual essence of the insect life of the Shadowlands. The Yuttos believed that this is what allowed Flux rafters to best adapt to changes in their grazing areas since they absorbed the fine senses of insects and could find new pastures faster then other breeds of rafter.