禅 Zen or Chan, was developed as a new kanji (Chinese character) to translate Dhyana after Buddhism came into China, but brings in different elements into the character, such as the altar shape on the left, and the shapes on the right which have multiple meanings.
So it doesn’t exactly match Dhyana, the Sanskrit for meditation or awareness. You could view the kanji visuals as meaning: mind-heart in one place, tranquil; or, zen practice is an instant gateway to enlightenment. Depending on how much you look into it! This is a mysterious and graceful character to embrace, much like the Zen practice itself there is no single way to pin it down conceptually.
The first video is of two styles, the faster sosho and the older reisho, very varied!
In the Tensho style video – this style was originally carved before being adapted for the brush, so is a more linear style – I practiced this quite slowly and meditatively keeping a soft focus, and starting and ending with gassho 🙂