you could search wikipedia
search for ken wilber
integral means 'not trying to create another brandnew better unique worldview' but taking the best from all that have been and finding how there could be a common truth hidden in all of them and not accepting any 'truth' that would dismiss any older wordview unless there is a really good eyplanation for why and how exactly they could have been wrong like that. the socalled philosophia perennis was one of the first integral approaches (i think).
eg integrating science and spirit
search for ken wilber
integral means 'not trying to create another brandnew better unique worldview' but taking the best from all that have been and finding how there could be a common truth hidden in all of them and not accepting any 'truth' that would dismiss any older wordview unless there is a really good eyplanation for why and how exactly they could have been wrong like that. the socalled philosophia perennis was one of the first integral approaches (i think).
eg integrating science and spirit