Bleach

Äs Nödt:
All human beings have things that cause them to feel comfort, and things that cause them to feel fear. When they enter a place that causes them comfort, if questioned as to why they feel comfortable there, they cannot form a clear answer, merely saying things such as 'because I do'. But when they enter a place that causes them fear, even the dullest of fools can identify the causes of that fear. Darkness, cold, height, confinement, pain, contamination. People can list any number of reasons to be afraid. This is because at the most fundamental level, 'comfort' leads to 'life', whilst 'fear' leads to 'death'. While people cannot give a clear answer why they want to live, they can give any number of answers why they do not wish to die. This does not only apply to sentient beings with emotions. It is in the nature of all life to avoid death, and therefore, to avoid 'fear'. All living beings go through life for the purpose of evading fear. It is to better escape fear that they train themselves. It is to better escape fear that they grow and evolve. Thus, it is impossible to be unaffected by fear as long as you are alive. [84]