The life-world theory was introduced by Husserl13 and described by Merleau-Pontyi a our being in the world'.The life-world perspective regards the person with the illness as the expert in experiencing that IS By getting to know the patients and the struggles in their life, RNs may help them to illness. manage existential issues connected with the loss of abilities When nurses access a patient's life- world, they may face ethical difficulties if they feel that this life-world is not taken into account when treatment decisions are made