Presence

In the beginning, Man rejects Divine authority in favor of his own reason and autonomy. This leads to all sorts of problems for Man, most of which involve other people being unhappy. At some point, a small group of Men, related by blood and recently emancipated from the tyrannical authority of an oppressive despot, subjugate themselves (not completely willingly) to Divine authority and accept upon themselves to abide by God's Law. This goes somewhat well, but, as with most things, there's a few bumps along the way; what becomes clear is that Man is locked in a constant battle, between obedience to a higher power and asserting himself as an autonomous individual; it is taken as a given that disobedient Man is not good.

As such, once a year (on what is considered the anniversary of the initial rejection of Divine authority), that nation gathers to reestablish their willing subjugation to Divine authority by submitting themselves, their deeds, their legal record, if you will, for judgment before God. As they are inevitably found lacking both on a collective and individual level in some aspect of their adherence and devotion to Divine authority and law, they enter into a plenary period of repentance, culminating in a final day of atonement for their grievances. By doing so they, to some extent, make whole the relationship with the Divine and reaffirm their acceptance of Divine Law. They begin a celebration of communion with their King by dwelling in his house for a period of time, in happiness and free from the concerns brought about by their finite nature.