The threat, thus, in anxiety is not necessarily more....

“ The threat, thus, in anxiety is not necessarily more intense than fear. Rather, it attacks us on a deeper level. The threat must be to something in the 'core' or 'essence' of the personality. My self-esteem, my experience of myself as a person, my feeling of being of worth - all of these are imperfect descriptions of what is threatened. ”

Rollo May

From : The Meaning of Anxiety