Age, probably from California.
-- Dzogchen Ponlop Rinpoche, from "Penetrating Wisdom: The Aspiration of
Samantabhadra", published by Shambhala Publications.
+~
+Even when it is practiced, accomplishing shamata is rare. One of the very
+common problems is that people try too hard. Both Tibetans and Westerners
+could learn a lot about relaxing more deeply and letting the stability arise
+from that relaxation. Although it is mentioned in the texts, the Tibetans
+sometimes do not emphasize this point, but they do emphasize tight attention,
+not letting your object drop for even a second. If you are coming from a very
+serene space, and your mind is already very spacious, then that is probably
+good advice. But otherwise, such attention can be a big problem. You can
+exhaust yourself and cause nervous fatigue, and if you push it, you can really
+do yourself some damage.
+ -- B. Alan Wallace, from "The Four Immeasurables: Practices to Open the Heart"