Meditation is not a unitary practice. There are important forms of meditation that involve extreme concentration on a single object, inducing unimaginably strong &quot;tunnel vision.&quot;<p>For an obvious example, consider the kasina practice of old-school Theravada Buddhism.<p><a href="http:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;20031230220324&#x2F;http:&#x2F;&#x2F;www.birken.ca&#x2F;texts&#x2F;Kasina_final.html" rel="nofollow">http:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;20031230220324&#x2F;http:&#x2F;&#x2F;www.birken....</a><p>Breath concentration is done in a similar way, but with the sensation of the breath as the object of fixation rather than a colored disc.