why is it important?
it is like asking - "can I breathe through my ears?"
this is for you to discover through practice. if you got the instruction, then practice.
when you practice, you will understand how it works and why it works.
do not try to intellectualize, just practice
the purpose is to attain realization
, not intellectual masturbation
Believe nothing, no matter where you read it, or who said it, no matter if I have said it,
unless it agrees with your own reason and your own common sense.