Unlike Bin Yong, Shi Zuo or even Luo Bo's animal cultivation styles that were passed down from previous generations as a part of the family heirlooms, Jia Le's cultivation style was indeed a relatively modern one. And it was not a pure eastern cultivation per se. The Breathtaking Bellflower was in substance, a fusion between Eastern Cultivation and Western Magic.
Western Magic usually worked best through magic circuits. Nevertheless, it did not necessarily require them nor did its spells need to be rewritten to be used with Eastern Cultivation since the concept of Mana and Chi had a few similarities.
As long as the cultivation style maintained the workings of the Western Magic used, it could provide the cultivator with the means to utilise their chi to cast those spells. With the East employing the five basic elements theory of Fire, Water, Earth, Metal and Wood, it already shared some resemblance to certain aspects of Western Magic.