"Yantra"  is - a geometrical diagram used like an icon usually in meditation. The literal translation of it is actually "machine, contraption"!

This design depicts the fascination of extra-terrestrial technological advancement in geometric art. It also depicts a glowing flower of life at the back.

UV Reactive White + Glow In The Dark.

Alien Yantra UV Reactive+Glow In The Dark Shirt (UltraTribeBahrain)