i just got a homeopathic book.."everybodies guide to homeopathic medicines" by stephen cummings and dana ullman.

and it was saying something like "if the asthmatic is sweet and affectionate or perhaps tearful and clingy, feels oppressed by warm and stuffy rooms, has little thirst, PULSATILLA is the probable remedy"

what does that mean? can someone only described as that take that medicine for asthma?
is it also based not only on symptoms but by there personality?

so if i said i had a cold, but i have depression would u recomend something different than if i said i was happy?

explain how this works??
whats the process for choosing a homeopathic medicine if i had a cold?

thank u!