The construction of an intrinsic spirit field was actually a complicated procedure, and the key was the spirit energy source. This source could be regarded as the trunk of a tree, out of which grew many complicated and forked branch routes. In addition to the spirit energy source, modeling of the environment was also a critical element.
Wang Ling had carefully done the calculations and come up with his own conclusions during the previous confrontation with the silver unicorn as well as through careful observation of the intrinsic spirit field discharged by Cheng Yu, Master of Immortal Mansion.
He could solve the difficult exercises in On Talismans in three minutes; analyzing the formula for constructing the intrinsic spirit field was also only just a matter of minutes.