Everydayness is Dasein’s inconspicuous, average way of existing, the way it is initially and for the most part.
Everydayness is a kind of blindness. The things we see every day are the things we never see at all.
Everydayness is that which takes Dasein as something handy that is procured, administered and reckoned away.
Everydayness is a crucial domain to study because in everyday existence we are not detached viewers or spectators, but engaged actors; we do things in the world, our being being an issue for us.
Everydayness is an important field to study because it is ‘optically closest’ to us and thus can do justice to the being of Dasein’s character as existence.
Everydayness is that which embodies the structure of existentiality, including dasein’s concern, circumspection, the inconspicuous context of its implements, and its spacings.