2d
3d
abstraction
achievement
archeology
circle
clear
crystal
discovery
dowsing
drilling a rock
effort
encounter
excavation
fitting into
fragment
game
heart
hole
hope
lack
light
new discovery
perseverance
physical strength
pit
psychology
purpose
puzzle
quiz
scoop
search
self culture
self discovery
shovel
star
sweat
symbol
tenacity
treasure
treasure chest
treasure hunt
triangle