Grounded symbol tattoo

The electrical symbol for a ground connection.

In this question is the following diagram for a voltage booster intended for small battery powered devices The TPS61200 spec says GND is control/logic ground and PGND is power ground but this isn't

Meaning of Celtic Spiral Tattoo: Culture, history & its spiritual significance explored. Understand the intricate meanings of this symbol.

No other tattoo designs convey a message as clear as word tattoos. Yeah, you’re right; it’s because the message is literally written on your skin! No cryptic symbols or surreal images for people (and most importantly, yourself) to wonder what your ink means. And although you might think that these are very simple tattoos, just wait until you see the examples we’ve rounded up in our list. They’re often very far from simple and definitely inspiring!

Sigil grounded