BTW, I've been using an AI to help track down what show you're talking about. The AI keeps pointing to "Kung Fu: The Legend Continues".
This is what the AI said:
Based on your description, the show you are looking for is "Kung Fu: The Legend Continues". It is an American television series that aired on NBC from 1993 to 1997.
Caine is captured by a group of bandits who believe that he is the reincarnation of a dangerous warlord. The bandits force Caine to read a book that contains the secrets of an ancient energy vampire technique. Caine is initially reluctant to read the book, but he eventually agrees in order to protect himself from the bandits.
As Caine reads the book, he begins to learn the secrets of the energy vampire technique. He also begins to develop the ability to float upside down, which is a necessary part of the technique.
After Caine has finished reading the book, he is released by the bandits. He then uses the energy vampire technique to defeat the bandits and escape.
The old man with the super long eyebrows is Master Po, a powerful Shaolin monk who is Caine's teacher. He is often referred to as "Eyebrows" because of his distinctive facial feature.
The two women you describe are Pei-Ling and Mei-Chen. Pei-Ling is a Shaolin nun who is Caine's love interest. Mei-Chen is a powerful witch who is one of the show's main antagonists.
The cave dude you describe is Master Chen, another powerful Shaolin monk. He is the one who transfers his power to Caine in the final battle.
In the final battle, Caine is able to defeat the Big Bad by using the energy vampire technique to absorb energy from Pei-Ling and Mei-Chen. He then uses this energy to create a massive energy ball that he throws at the Big Bad, defeating him.