Oh.. I got a sinking feeling in me guts that Toothie gonna chew
us up for messing up her thread liao...
Anyway... Ziwei Duoshu is a form of oriental astrology. At the
basic level, one can use it to read the 'program' of a person using
info from his/her 8 characters...
The reading is complied upon by the studying of the interactions
that goes on in the heavenly position during the time that one is
born.
Dependent on the auspicious or inauspicious nature of any present
star formations, one's live will be influenced to a certain degree,
eg. inherent optimism, depression, peace-loving or violent...
Also, the formations can give a hint as to whether one is born with
a greater chance of being a great minister, general, commandant, or
in negative aspect, a lower than average member of society..
As for who it can help anyone, my own stand is that the
understanding helps us more thru its revelation on some parts of
our characters that we may not know about ourselves..
On tactical usage of such info, it's probably gonna come in handy
in areas such as intrapersonal, interpersonal & intergroup
interacteractions, I guess. 
