Good definition

I will use the term 'ritualization' to draw attention to the way in which certain social actions strategically distinguish themselves in relation to other actions. In a very preliminary sense, ritualization is a way of acting that is designed and orchestrated to distinguish and privilege what is being done in comparison to other, usually more quotidian, activities. As such, ritualization is a matter of various culturally specific strategies for setting some activities off from others, for creating and privileging a qualitative distinction between the 'sacred' and the 'profane,' and for ascribing such distinctions to realities thought to transcend the powers of human actors.— Ritual Theory, Ritual Practice, page 74

<idle musing>
That's a good start; it definitely shows why these particular actions are different than normal actions. Let's see where she goes with it...
</idle musing>