The story of Om Banna in Hindi usually involves elements of mystery and local folklore. It's often centered around his unique and somewhat legendary experiences.
I'm sorry, I don't know which novel or story you're referring to because I don't have the context. If you can provide more information, I will try my best to help you answer your questions.
Si Teng and Bai Ying were two split characters from the same person. Si Teng represented the rational, kind, and intelligent side, while Bai Ying represented the emotional, greedy, and fierce side. There was a complicated relationship between them. Si Teng gave Bai Ying half of his strength in the play, hoping to defeat her. However, Bai Ying's performance after her resurrection was beyond Si Teng's expectations. She displayed powerful magic power. As for why they looked different and why Bai Ying could host someone else, there was no mention of it in the current information.
The 'om namo narayanaya' is a sacred mantra in Hinduism. The story often relates to the concept of Narayana, who is considered a supreme being. It can involve tales of his creation, protection of the universe, and the significance of invoking his name through the mantra for spiritual growth, peace, and liberation.
You need to pay close attention to the details and look for clues throughout the story. Sometimes, it could be hidden in a special scene or behind an object.