'Taint Natural

after describing the five aggregates of clinging, Sayadaw references the Khanda Sutta and explains that there are 11 types of clinging:

1. past
2. future
3. present
4. internal
5. external
6. gross
7. subtle
8. inferior 
9. superior
10. far
11. near

and these 11 types apply to: 

1. materiality
2. feeling
3. perception
4. mental formation
5. consciousness

ending the selection with the Buddha's words, "(whatever kind....) that is tainted, that can be clung to, is called the (1-5 above) aggregate of clinging. "

And while i don't want to just cut and paste, here's some more on the word 'taint'

"And what are the taints, what is the origin of the taints, what is the cessation of the taints, what is the way leading to the cessation of the taints? There are three taints: the taint of sensual desire, the taint of being and the taint of ignorance. With the arising of ignorance there is the arising of the taints. With the cessation of ignorance there is the cessation of the taints. The way leading to the cessation of the taints is just this Noble Eightfold Path; that is, right view... right concentration."

— MN 9 (Ñanamoli/Bodhi, trans.)

Sayadaw ends PAGE 6

reinforcing the fact that there is materiality and mentality, and also drops the bomb on us that 'in the world of the five aggregates, mentality depends on materiality.'