Table 1.

Overview of main concepts

Level of intentionality	Unification of the self-world structure	Stages	Perspectives	Concepts	Description
Intentional	Intrinsic relationship/unification	1	FPP, SPP, and TPP	Self-consciousness (pre-reflective and reflective)	Experience of oneself in relation to the world
		2
Pre-intentional	Severance of the relationship (fundamental impairment of the self-world structure)	3	Loss of a coherent point of view (“view from nowhere”)	Blind-consciousness Existential “feelings of nothingness”	Pre-intentional feelings of one's and the world's annihilation Fundamental impairment of both the intentional arc and being-in-the-world

Existential framework: experience, knowledge, and existence. FPP, first-person-perspective; SPP, second-person-perspective; TPP, third-person-perspective.