Archetypes 

Color:

White: purity, innocence, peaceful

Black: mysterious, serious, powerful, death

Green: life/fertility, envy, inexperience

Orange: happiness, determination

Yellow: sunny, cheerful, joyous

Red: passionate, dangerous

Blue: tranquility, calm, peace, harmonry

Purple: royalty, powerful

Gold: wealth, prestige, knowledge.

Shapes:

Circles: unity, eternity

Triangles:commitcation, trinity

Squares:stability

Rectangles: rational 

Objects and Symbols:

Tree: knowledge, life

Boats/Rafts:

Bridges: connecting ideas and culture

Masks:

Shadows: evil, dark side

Skeletons: mortality