Licking is the action of passing the tongue over a surface, typically either to deposit saliva onto the surface, or to collect liquid, food or minerals onto the tongue for ingestion, or to communicate with other animals. Many animals both groom themselves and eat or drink by licking.

https://en.wikipedia.org/wiki/Licking

"We long to be here for a purpose, even though, despite much self-deception, none is evident."
Carl Sagan
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