1"Bhikkhus, when one thing is developed and cultivated, (593) penetration of numerous elements occurs … (594) penetration of the diversity of elements occurs … (595) analytical knowledge of numerous elements occurs.[n.212] Mp explains "penetration of numerous elements" (anekadhātupaṭivedha) as the penetration of the characteristics (lakkhaṇa) of the eighteen elements; "penetration of the diversity of elements" (nānādhātupaṭivedha) as penetration of the characteristics of those eighteen elements by way of their diversity (nānābhāvena); and "analytical knowledge of numerous elements" (anekadhātupaṭisambhidā) as the knowledge that classifies elements thus: "When this element is prominent, that occurs." MN 115, III 62–63, explains various ways in which a bhikkhu can be called "skilled in elements" (dhātukusala), all of which may be pertinent to the present passage. What is that one thing? It is mindfulness directed to the body. When this one thing is developed and cultivated, penetration of the various elements occurs … penetration of the diversity of elements occurs … analytical knowledge of the various elements occurs."