A graduate of a technical secondary school for miners, Grygny worked as an electrician-technician in the Katowice mine. Then, in the late 1960s, he toured with famous bands as a sound engineer and photographer. He started a family, but his mental illness led to his downfall. From then on, the artist lived a reclusive life, wandering and creating intensely.

In the 1980s, he abandoned his works in front of the Ethnographic Museum in Krakow.

Grygny wrote down his thoughts on the world in the form of letters that took the form of commentary, wordplay, or a unique manifesto. His calligrams also incorporated found objects, fragments of envelopes, and old papers. Each of his works bears a revenue stamp and a postmark.

His works were exhibited at the Museum of Modern Art in Warsaw in 2016.