Source: Mythology The Two Great Gods of Earth 5th paragraphSemele was the most unfortunate woman of all those Zeus fell in love with, and in her case too the reason was Hera. Zeus was madly in love with her and told her than anything she asked of him he would do; he swore it by the river Styx, the oath which not even he himself could break. She told him that what she wanted above all else was to see him in his full splendor as King of Heaven and Lord of the Thunderbolt. It was Hera who had put that wish in her heart. Zeus knew that no mortal could behold him thus and live, but he could do nothing. He had sworn by the Styx.
I know the meanings of each word but as a whole I can't see what the blue part means.
Would you please be kind enough to clarify it to me?
Thank you so much
If anyone saw Zeus in his full splendor, he (the mortal viewer) would die.