Zhian'tal
Zhian'tal exercises were a Trill practice that helped an individual build the connection between mind and body. They involved repeatedly touching one's fingertips together in succession.
After reincorporating into a new body in 3190, Gray Tal spent a week focused on his zhian'tal exercises, before deciding to venture out on the USS Discovery while Adira Tal was on an away mission. (DIS: "All Is Possible")