It is said that dukkha (unsatisfactoriness born out of the perception of lack or incompleteness causes suffering) is an innate characteristic of existence in the realm of samsara more commonly known as the world. Truth is profoundly simple and inherently beautiful. There is, theologically speaking, only Buddha or Ādi and the reason why Buddha is* diverse is Companionship otherwise known as Love hence the gospel of Maitrī i.e. Love. (* perceived itself as)