Why it is said that personality is a mask?

Personality is often described as a "mask" because it can represent the social facade individuals present to the world, concealing their true feelings or vulnerabilities. This metaphor suggests that while people display certain traits or behaviors to fit in or be accepted, these may not reflect their authentic selves. Just as a mask can alter perception, personality can shape how others see us, leading to a disconnect between one's inner self and outward expression. Ultimately, it highlights the complexity of human identity and the roles we play in different contexts.