Karin Ryuku Kempe on case 86 in the Blue Cliff Record, Yunmen’s “Everyone Has Their Own Light.”
You also might be interested in
Geoff Keeton on case 176 in the Shobogenzo, Xuefeng's "Thirst and Starvation"
Geoff Keeton on case 1 in The Gateless Barrier, Chao-chou's Dog
If this whole thing confounds you, then you are approaching it correctly, and you are in the right place.