Understanding

Damian had gathered that all of his friends had unique and rare Soul Spirits from what the inheritance described to him about cultivation and Soul Spirits.

Those that had Soul Spirits when cultivating would use it as the centre of their cultivation making it extremely important and valuable to cultivators who wanted to grow an elemental affinity and a power, as without it you could only use your body and skills that don't have an elemental affinity.

Julia had an Aqua Soul Spirit and was an Aqua Mage that specialised completely on Hydrokinesis, Cole had a Terra Soul Spirit and was a Terra Fighter that specialised on enhancing and fortifying his body with the use of the Earth element and Matilda seemed to have an Acro Soul Spirit and was an Acro Mage that used her voice as the centre of her Wind Power.