Although each one of them is equally important and necessary, yet the attainment of self-realization is necessary, and without self-realization they are not of great use for perfection. Of course one helps the other, the heartfelt devotion causes morality to spring forth in the nature, and the development of morals illuminates a person, making him wise and it is wisdom which gives unchallengeable power and it is that power which fights against delusions and conquers the mortal self.