en.wikipedia.org/wiki/Jasieńczyk_coat_of_arms , in polish vesion of this site you also have a list of names of people who have(had?) used it since it was created. I'm not sure if this is what you wanted. If not - sorry.
Yes, Jasieńczyk was the coat of arms used by one gentry line of the Krajewski family. There were eight others including Dąbrowa, Leliwa, Odrowąż and even an own-name crest called Krajewski.
Do you mean the symbolism of the Leliwa coat of arms?
If you're interested in the hypothesised symbolism of Polish herby, read the excellent paper by Dr Rafał Prinke (available online - google it) which you may find interesting.