Art possesses the uniquely powerful ability to evoke a variety of reactions, from inspiration and awe to offence and disturbance. This is due to its ability to represent reality in a myriad of ways - from complete revelation to cunning concealment. This characteristic lends art its influential power, making it a prime target for those seeking control over societal influence.

Example: Let's think about a provocative piece of street art - Banksy's famous works, for instance. They often comment on societal and political issues, thus sparking discussions, but also sometimes controversy. This influential power makes such art a target for censorship.

Censorship isn't just the domain of governments. All levels of humanity have a track record of censoring based on moral, ethical, or sensitivity grounds, aiming for social stability and protection of vulnerable groups.

Example: Queen Victoria's "encounter" with Michelangelo's David led to a "fig leaf" covering his nudity. This instance shows how even personal or cultural sensibilities can lead to censorship.

On the other hand, the complete erasure of revolutionary icons like 'Tank Man' from Tiananmen Square is an example of governmental censorship.