In the tarot, blades represent the mental realm, and we are familiar with the concept of the double edged sword. The labrys is the double headed battle ax used by the Amazons, not just in war, but to plow the fields. This represents are ability to destroy and to create, specifically using both our right brain & our left brain, to destroy old outdated thought patterns and to create new fresh fields for seed thoughts to grow & flourish.
The two blades also represent the waxing & waning of the moon, the twining rose a blossoming caduceus.
Labrys tattoo by Tatiana of Terra Nova Tattoo, 1990