Complex sentence: But it must be recognized that to the Yorubas it is a system; that is not just merely medicine such as it is in modern times, but is sometimes refered to as a remedy, a religious undertone and a scientific phenomenon all rolled into one.
Split into simpler sentences: But it must be recognized that to the Yorubas it is not merely a procedure such as it is in modern times, but an outright system. Sometimes refered to as a remedy, a religious undertone and a scientific phenomenon all rolled into one.