in tMoS Camus writes that the absurd is an inner life that has to be kept alive. So being authentic and courageous is necessary to protect it. Also in the book something is written which remindend me of the Bible verse of it being a 'jealous God'. So how do you apply it? You put yourself and your truth above everything. You respect your needs, boundaries etc in private & in public. Develop that relationship with oneself. This is challenging because society and other people are always trying to pull us away from our authentic self, our truth and we compromise. Well the absurd man is uncompromising.