In The Courage to Be, Paul Tillich asserts:
He who does not succeed in taking his anxiety courageously upon himself can succeed in avoiding the extreme situation of despair by escaping into neurosis. He still affirms himself but on a limited scale. Neurosis is the way of avoiding nonbeing by avoiding being.
https://hokmahrevision.wordpress.com/2012/09/17/tillich-on-signs-and-symbols/
How my heart sings 