Every phantasy has the value of a possibility

"Naturally, it is self-evident that there cannot be nothing. But a mere 'tumult of sensations,' a chaos, which elapses in the pre-empirical procession of time so irrationally that no apprehension of things could be found and maintained, a mere maelstrom of sensations, I say, is indeed not absolute nothingness. It is only nothing that can in itself constitute a world of things. .... Thus we arrive at the possibility of a phenomenological maelstrom... All in all, the world - in its existence and in what it is - is an irrational fact, and its facticity resides uniquely and exclusively in the strictness of the motivational nexuses... Experience is the force which guarantees the existence of the world... in the perceptual nexus every perception is augmented by every other one, corresponding to all the series of fulfillments which interweave into a manifold braid, unitarily and harmoniously... possibilities are not empty possible thoughts but are possibilities grounded in motivation. ...actual perception in a harmonious perceptual nexus refers to these or those possible perceptions that are in accord with the elapsing perceptual nexus... Every phantasy has the value of a possibility... The appearances occurring at any time are appearances under motivating circumstances." 

 — Husserl, Final Considerations, in Thing and Space: Lectures of 1907 (Kluwer, 1973) p249-53.