KNOWING

A certain way to know is to describ completly, if possible, all the mecanisms as well physically, chemically and mathematically for a changing state of the matter...It's called science and give us the capacity to operate effectively on things...And so we know HOW.
A certain way to know is to be mentally completly, if possible, in a non dual state of mind beyond intellectual discrimination...It's called meditation, comtemplation and give us the capacity to operate effectively on the perception of things...And so we know WHY.
The both knowing: the how and why let us to live accordingly with nature and in nature, in compliance with nature which is to BE and not to BE at the same time...

LHART