hold one's head up (high)

What is the origin of the idiom "hold one's head up high" and when to use it?

The origin of the idiom "hold one's head up high" is not attributed to a specific event or source but rather stems from the universal symbolism associated with body language and posture. This idiom can be employed in various contexts, both personal and professional, where individuals may face adversity, criticism, or challenging situations.