Absent Thing As Located Existent

there	is	something not-there	there
	Process: existential	Existent	Location

Putting At Risk

Attributor	Process: relational	Carrier	Attribute
someone who understands theory	puts	all impostures	at risk
Actor	Process: material	Goal	Location

An Inclination To Possess Realised Metaphorically As An Inability To Exist

I	cannot live (‘exist’)	without them
Existent	Process: existential	Contingency: default
		Accompaniment *

metaphorical for:

I	need (‘must have’)	them
Carrier: possessor	Process: possession	Attribute: possessed

* Viewed from above, the meaning is Contingency: default ('in the absence of').  As Halliday & Matthiessen (2004: 273) point out:

A circumstance of Accompaniment may have an additional sense of cause or contingency…