None of the Asian magical schools utilizes the power of water ghost except one. The Thai magic makes use of earth spirits while the Vietnamese magic utilises the power of plants predominantly. The only system I have ever known that make uses of water ghost is the Javanese ‘name of power of great river’ aka ‘Asma Sungei Rajah’ and the ‘sword’ aka ‘saefi’ typically speaking.
The understanding of water ghost is different in various cultures. The Chinese version of water ghost is anyone who is drowned in water, the West have their own version of water spirit and the Malay version of water spirit is totally different from any other traditions. The Malay water ghost has something to do with mythical story of Badang; who became extremely powerful after swallowing the vomit stuffs of a water ghost. This story was being filmed in 1962 locally.
According to the story, a water ghost used to steal fishes caught by Badang from a lake near his house quite frequently. Badang felt very angry after finding all his catch was being stolen by someone. So, one night after he has caught some fishes, instead of going for more catches; Badang hid behind a bush as he wanted to catch the culprit red-handed. After some waiting, a water ghost appeared from the lake and start devouring Badang’s fishes. In a state of furiousness, Badang caught hold of this water ghost and threatened to kill it unless the water ghost would pay him for all his loses.
As a gesture to redeem its guilt, the water ghost promised to bestow Badang supernatural power if and only if he would swallow all of the vomit stuffs from the water ghost’s stomach. Badang did as told and he became super powerful. Of course, that was the mythos.
Having so said, water ghost in the belief of local Malay is dominated by unisex: male. Its body is covered by thick and big scales and this water ghost has long beard that reaches its chest level. This water ghost is also believed to be bold, with a pair of pointed ears and sharp teeth and also claws.
I am sure you would agree with me that by now, the Malay version of water ghost subspecies is quite different and more powerful from the Chinese ones.
Now, if you have followed my earlier posting of Asma Sungei Rajah, then you would notice that for best results; Asma Sungei Rajah is best to be practised by submerging one’s lower body up to waist level into a river with clear running water starting Friday night coupled with a consecutive of 7 night’s mantra recitations.
I certainly don’t expect people to go into a river, lake or sea at night these days… But if you really do, then you might see a black figure linger near you. If you continue to stay put and not run away; then this creature shall jump onto your shoulder and then merge into your body. It is only after the entity has entered into your body successfully that the practice of Asma Sungei Rajah and some Saefi (sword) practices can be considered successful. The power of Asma Sungei Rajah must be recharged every two weeks by dipping into a river, lake or sea or else the water ghost will leave; and hence the power bestowed into a practitioner will also fade.
Before anyone started to jump into water, I must caution that inviting a water ghost into one’s body is very dangerous matter. If the practitioner failed to overcome the brute force of this water ghost, then it will take over the person’s body and this person may drown himself if not become insane. Hence, my advice is simply do not engage in this type of practices at all.