Wang Wei immediately elevated Cai Song's importance to the highest level as he knew she might be crucial to him. And he's not just referring to after she proves the Dao. No, she might be an essential asset for the later stages of his cultivation journey.
Additionally, he understood something about him–why he likes people to owe him Karma Debt.
'This is most likely a natural instinct influenced by my future self to create more valuable allies.'
Wang Wei knew the past, present, and future were not linear. The existence of the River of Time made all sentient beings–no matter how powerful–experience time in a linear way.
However, once a cultivator reaches a certain level, their future can naturally influence their past. It could be in the form of intuition, a whim, or even certain behaviors.
