"The Yin Yang Longevity Technique is a cultivation method for the Yin Yang Dao, which itself is the supreme Dao. The Dao cannot be shared lightly; what benefits do I gain from passing it on to them?"
In other words, passing the Yin Yang Longevity Technique to Tian Lin also benefits Tingyu Zhenren.
But Tian Lin indeed lacks the confidence to comprehend this technique on his own, so after listening to the spells taught by Tingyu Zhenren, Tian Lin was in no rush to enter the mountains.
For the next two to three days, under Tingyu Zhenren's careful guidance, Tian Lin immersed himself in comprehending this top-grade spell.
In truth, given Tian Lin's perceptiveness, coupled with his possession of several top-grade divine skills, cultivating ordinary spells wouldn't pose excessive difficulty for him.