Ye Xiwen waved his hand, collected these 'spirit crystals', and put them inside the 'Heavenly Source Mirror'. These 'spirit crystals' were the protective barrier with the help of which those mountain beasts had been flourishing. However, they had fallen into Ye Xiwen's hands now.
It could be said that one 'spirit crystal' could be exchanged for 100 'Primary Spirit Dans'. In fact, one could get an even higher number of 'Primary Spirit Dans' if they exchanged it in the black market. However, he didn't wish to exchange these 'spirit crystals'. 'Spirit crystals' could be exchanged for 'Primary Spirit Dans' with ease. However, it was difficult to exchange 'Primary Spirit Dans' for the 'spirit crystals'.
Ye Xiwen must find a place to absorb these 'spirit crystals'. And, his cultivation would perhaps attain a brand-new progress once that had happened.