The body is having all sorts of light bounce off my eyes of various wavelengths.

身体可以通过不同的,波长把光线反射进我的眼睛

耶鲁公开课 - 死亡课程节选

When the body is in stress, we have various unusual stimulations of the visual sections of the brain, and perhaps that explains the white light or the feeling of compression in the tunnel.

身体受压时,我们收到对大脑视觉区域,各种不同寻常的的刺激,也许这可以解释白光,或者在隧道里压抑的感觉

耶鲁公开课 - 死亡课程节选