Nate and his girlfriend are listening to a lecture on an author's travels through Eastern Europe. After listening for an hour he becomes drowsy and his head begins dropping forward, until his girlfriend elbows him to wake him up. Nate's drowsiness is an example of an altered state of consciousness that occurs:

earlier philosophers whose work influenced the enlightenment included bacon, descartes, locke, and spinoza. the major figures of the enlightenment included beccaria, diderot, hume, kant, montesquieu, rousseau, adam smith, and voltaire. it spread the ideas of the enlightenment across europe and beyond.

can you explain it better