Does buddhists believe in ki only, or does they also believe in chakra, and stuff like that?
Can a buddhist train up his ki in any way? F.example holding more ki, use it better, conditioning the use of it?
How can you train up you ki-abilities, if thats the case?
How can the results of this conditioning be seen in the practical everyday-life?
Chinese Buddhists often talk about
qi (i.e. what the Japanese call
ki), but that's because they're Chinese, not because it's specifically a Buddhist thing. In particular our teacher tends to interpret different physical reactions that people experience while meditating in terms of
qi, and he recommends acupressure points to help with "blockages" (i.e. things that cause discomfort), but that's just the culture he's coming from. It's what happens when Indian yogic practices get filtered through traditional Chinese ideas about the body.
The closest you'll get to specifically Buddhist ideas about cultivating
qi will probably be Shaolin martial arts. But even then it's basically Chinese martial arts practiced from a Buddhist perspective.
Qi cultivation in itself isn't a goal in Buddhist practice as such. But it's not uncommon for people to do some light
qigong exercises between sessions of seated meditation, as a way to keep the body from getting stiff and creating blockages.
The only Buddhist schools that frame things in terms of cakras are the tantric ones, like the Tibetan schools, which reflect a lot of later Indian philosophical developments. I really don't know any specifics beyond that.
