Da Inglese a Italiano Altro Generale/Conversazioni/Auguri/Lettere Go Zen

Ciao, sto traducendo un testo di narrativa e non riesco a rendere questo termine. Grazie.

The next morning, YY volunteered to paint a bit of trim to show Mrs. XX the new colors. She loved them, clapping her hands with delight. YY wanted to keep working on the trim. He liked using the smaller brushes and how, in order to stay in the lines on the fine detailing, he had to go Zen and let his hand move without overthinking.