Discipline
Discipline is a basic ingredient in almost all schools of inner
development. This is for several reasons. One reason is that the
emotional, false personality tends to behave and act in a haphazard
way, mainly in whatever way seems to help avoid any unpleasant
truth. So without discipline it will tend not to do the work necessary
for inner development because this work is largely a process of
confronting unpleasant truths, at least at the initial stages.
(Essence, pg 34)