[It is what I said it is, Universe Essence. Consider it a type of energy, just like Spiritual Energy or Yin Yang. However, this is very useful. Check your bodies. You should be able to feel this essence circulating through your meridians.]
Rean and Roan nodded as they used their Spiritual Senses to check their own bodies. Sure enough, they could feel some kind of different power present there.
'What can this thing be used for?'
[Keep it. You will want to use it when your Spiritual Pools change into Yin Yang Cores. Although it won't increase your combat powers, your Yin Yang Cores will become a lot more resistant to impacts. It should improve your cultivation speed a little bit as well.]
Rean and Roan nodded.
'That's quite good. If someone aims to cripple our cultivation, it might just become our silver lining. We already got a free upgrade in the Reward System anyway, so this is a bonus.'
Sister Orb agreed with them.