The tendency of individuals to protect their own worldview by rejecting information and phenomena that cannot be reconciled with it is a significant issue in today’s polarised society. This paper aims to gain a deeper insight into this tendency towards exclusion and the impact it has on worldview by examining a particular interpretation of worldview developed in the late 1930s by Martin Heidegger. It is a radical account that portrays a highly restrictive and extremely closed-off model of worldview, within which (...) exclusion plays a key role. The impact of this exclusion on the nature and shape of worldview is explored by analysing worldview from three distinct perspectives focusing on (1) its appearance, marked by freedom and safety, (2) its inner dynamic, marked by absolute control, and (3) its affective background, marked by frantic struggle and dread. The analysis reveals a dread-fuelled, highly reactionary, and thus extremely fragile structure that is fundamentally shaped by the endless effort to conceal the exclusion on which it is built, resulting in a complete inability to engage with that which is excluded without severely endangering the very existence of that worldview. (shrink)