The two doctors continued saying, “In our mouths we have tasted many herbs, wood, metals, and stones of the Saha world. A hundred and eight thousand flavors. We know in detail the bitter, sour, salty, bland, sweet, and pungent flavors, and the like, in all their combinations and inherent changes." "While serving the Thus Come One, we came to know that the nature of flavors is not empty and is not existent,” not empty, not existent, “nor is it the body or mind, nor is it apart from body and mind. We became enlightened by discriminating among flavors.” Who knows why just discriminating between the herbs' flavors, they became enlightened? It's very simple, logical. You can be in two worlds at the same time, many worlds and physical world at the same time.