that meaning, OF value,

 I am threatened by ethical anguish—“which is the recognition of the ideality of values” (Sartre 1943 [1992, 76]). 

And, as with all anguish, I do not escape this situation by discovering the true order of values but by plunging back into action. 

If the idea that values are without foundation in being can be understood as a form of nihilism, the existential response to this condition of the modern world is to point out that meaning, value, is not first of all a matter of contemplative theory but a consequence of engagement and commitment.