Marie-Eve Morin on the point of it.

[T]here is never only one piece of equipment, but always already a referential totality of equipment. The piece of equipment is disclosed in its in-order-to, in its readiness-to-hand (Zuhandenheit), from out of this totality of equipment, work, disposable materials, users and consumers, etc. Ultimately this referential totality points toward a Worumwillen, a for-the-sake-of-which, it points toward a possibility or a project of Dasein.