in-between-ness, vestibules, rhizomes

I’ve been collecting notions of in-between-ness and liminality in relation to Sufism and commercial culture, rooted in the Platonic metaxý – from İbn Arabî to Georg Simmel. I have missed two important ones though –Deleuze and Guattari’ anarcho-Platonic/Heraclitean notion of the rhizome as in-between – and El Gazâlî’s notion of the dihlîz – the vestibular space. Here is Ebrahim Moosa’s (2005: 48f.) account of the concept:

‘The dihlīz signifies the space as well as the action of two entries: entry from the outside and entry into the inside. It is the critical intermediate space between outside and inside, between exoteric (āhir) and esoteric (in). And it is also the space that one has to traverse in order to enter or exit, which is the real function of a threshold area. That dihlīz-ian space constitutes a bounded space, a threshold between door (bāb) and house (dār). It is not a useless space, but one that can be used for multiple purposes. Viewed from the house proper, the dihlīzis located on the outside. But viewed from the door leading to the street, thedihlīz is on the inside. […] Unlike a border that serves as a territorial demarcation between sovereign territories and criminalizes improper crossing without authorization, the dihlīz is not a criminalizing space but a welcoming space. Furthermore, it ensures that one enters by the door in a disciplined manner while maintaining the decorum appropriate to the integrity of the occupants of the house and the people of the street. It is neither entirely private nor totally public, but something in between. However, the crucial dimension is the fact that without the dihlīz one cannot speak about an embodied “door” and a “house,” nor can one speak of an “outside” and an “inside.” Even though it is located in between spaces, the dihlīz frames all other spaces.’