In Mythology, Odin sacrifices his right eye to Mimir to gain wisdom; Mimir then drops Odin's eye in his well. To take a drink from Mimir's well is to gain wisdom. Some tellings also say Mimir is beheaded and Odin consults his severed head.
Features to include when drawing:
Blonde hair & facial hair
In charge of the "Well of Mimir" - think library
Gives advice to Odin
Splash color = Orange
Mimir represents and personifies, and is the source of what is known as divine inspiration, perspective, and insight as it relates to philosophy.