What was the original meaning behind the four PlayStation controller symbols (triangle, circle, X, square) according to their designer Teiyu Goto?

Sony's PlayStation has been a gaming powerhouse since its debut in 1994, but its iconic controller design holds fascinating product design secrets. The distinctive triangle, circle, X, and square buttons weren't randomly chosen - they represent meaningful concepts in the Japanese gaming market. Test your knowledge about this influential piece of gaming hardware that has remained remarkably consistent across generations while influencing countless competitor designs.

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They represented the four elements: air, fire, water, and earth
They symbolized different types of game actions: viewpoint, decision/confirmation, cancellation/no, and menu/documents
They were chosen purely for their visual distinctiveness with no symbolic meaning
They represented the four cardinal directions: north, south, east, and west