“Be a master everywhere and wherever you stand is your true place. (Translator unsourced.)”
<爾且隨處作主。立處皆真。> [T47n1985_p0498a19] from Linji lu (臨濟録, Record of Linji).
Just make yourself master of every situation, and wherever you stand is the true [place]. (Trans: R.F. Sasaki, Ed. T. Kirchner, The Record of Linji).
If you master any situation you are in, wherever you stand, all becomes true. (Trans: Irmgard Schloegl, The Zen Teaching of Rinzai).