A lack of self-esteem will trigger a defense or protection mechanism, which we use consciously or not, so that they cannot hurt us and so that we do not seem weak in front of others.
“The world is a great theater, and men and women are actors. Everyone makes their tickets and their mutis and various roles in their lives… ”‘ As you like ’
W. Shakespeare
Thus, for example, we can take refuge in beauty, professional successes, the economy, narcissism or sexual success to mask our lack of confidence.
On the contrary, someone with high self-esteem will not boast of any of this to feel loved, since they will not need the approval of anyone to know what he really is.