In humans melatonin levels rise at night, in response to darkness and cues from the circadian clock.

人类的褪黑激素水平在夜晚上升，以响应黑暗和昼夜节律钟发出的信号。

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You that are still in the flesh, subject to horrors of the imagination, think what a monstrous fear that must be which seeks in darkness security from malevolent existences of the night.

你们还是肉身，会被想象的恐惧左右，会想那该是多大的恐惧啊，会让人从夜的险恶存在中寻找安全感。

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God put these lights in the vault of heaven to give light on earth, to govern day and night, and to separate light from darkness; and God saw that it was good.

上帝把日月星辰置于天穹之中以照亮大地，司昼夜、分明暗。上帝见如此很好。

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