The general is surprisingly good at meditation. It’s not just the impeccable posture — that might be expected of a man long used to standing at attention. It’s his hands, which rest idly on his knees, and his combat boots, which remain planted firmly on the floor. Over the next several minutes, Lt. Gen. Eric Schoomaker, the Surgeon General of the Army, will keep his eyes closed and his face perfectly relaxed.

Few in this hotel conference room, where three dozen have assembled to mark the 10th anniversary of the Samueli Institute, a research organization specializing in alternative therapies, are able to match Schoomaker’s stillness.

Even as our first speaker implores that we “close [our] eyes … feel the chair, feel the air, feel the breath going in and out,” this motley crew of professors, bejeweled clairvoyants, military personnel and Einsteinian-haired futurists tap their toes, shuffle papers and ogle paper plates of fruit and croissants....