In languages that use a relative frame of reference we can say that the heart is on the left side of the body, and no matter what direction you are facing that is true. But in an absolute frame of reference, if you said that the heart is on the west side of the body while your facing north but then turned to the south, the heart is no longer on the west side of the body.
If a purely absolute frame of reference language exists, how does it address this problem? If not, how would such a language approach this problem?