Here's paragraph 3. Tell me what you think of this: 
 :Before: 
 ::The three basic moral principles of Falun Gong are: Zhen 真, Shan 善 and Ren 忍, which translate approximately as 'Truthfulness, Benevolence (or Compassion), and Forbearance (or Tolerance)'. It is through focusing on these qualities that Falun Gong practitioners say they develop what they call their xinxing (moral character) which then purportedly gives the potential to develop high levels of 功, gōng, which Falun Gong practitioners use to mean "high level energy" (this is an unconventional use of the word, which in Mandarin Chinese means "merit" or "achievement" and by extension is part of compound terms describing a disciplined regimen.) Falun Gong adherents make the claim that gōng possesses healing properties, and that 氣 qi (which denotes "breath" or "vital energy") has no ability heal illnesses whatsoever; it can only serve to "purify one's own body". See also: qigong, kung fu, traditional Chinese medicine. 

 :After 
 ::The three fundamental moral principles of Falun Gong are: Zhen 真, Shan 善 and Ren 忍, which translate approximately as 'Truthfulness, Benevolence (or Compassion), and Forbearance (or Tolerance)'. It is through adhering to these principless that Falun Gong practitioners improve or upgrade what they call their xinxing (moral character). Practitioners believe that through the gradual improvement of their xinxing they develop 功, gōng, which they use to mean "high level energy" (this is an idiosyncratic use of the word, which in Mandarin Chinese means "merit" or "achievement"). Falun Gong adherents believe that 氣 qi (which means "breath") is a low level and natural form of energy possessed by all, while gōng, unlike qi, possesses healing properties, can purify one's body, and is considered necessary in practicing towards enlightenment. See also: qigong, kung fu, traditional Chinese medicine.  

 1) I changed “basic” to “fundamental” because I believe the word “basic” doesn’t carry the significance to which these principles are given in the practice. “Fundamental” implies that this is the most important and core aspect of the teachings. “basic” can be taken as meaning that this is the simplest aspect of the practice, but not necessarily the core. 

 2) I changed “focusing on these qualities” to “adhering to these principles.” I think that this choice of words better reflects the practitioner’s relationship with the principles. It is much more one of adherence, than simply one of focusing. 

 3) I changed “say they develop” to “improve or upgrade.” Xinxing isn’t something that we “develop”. Everyone has it. It’s just that we try to improve our xinxing. These words are much more accurate. And there’s no need to say “they say”; this is a given. 

 4) I started a new sentence for the connection to gong. I think it flows better this way. 

 5) In the direct translation of Gong, I removed the part that said “and by extension is part of compound terms…” I don’t think there’s any need to mention compounds here. 

 6) I changed “Falun Gong adherents make the claim” to “Falun Gong adherents believe”. These are our beliefs and I don’t think that believing in something is quite the same as making a claim. This doesn’t seem to be the appropriate context to use those words. 

 7) You’ll notice that I changed much of the explanation of the relationship between Qi and Gong. What was written before wasn’t that accurate. I gave an explanation of qi from the practice's perspective, which wasn't previously included but is important in understanding the relationship. 

 8) Actually, qi can't really purify a person's body, he can only reach the "milky white body" state. The state of a truly pure body or the "pure white body" or "crystal white body" state can only be acheived through cultivating gong. So I took that away from the explanation of qi and put it with gong. 

 9) I think it is also necessary to mention Gong's significance in acheiving enlightenment, which is really fundamental to this particular belief. So I included that too.