Courtney E. Smith at the NYC based website Radio.com gives the following interpretation of the video to Glow:
“What hath night to do with sleep?” John Milton asked in Paradise Lost.
Ella Henderson revisits the question in the video for her single, “Glow.”
Whether Henderson realizes it or not, “Glow” presents an interesting allegory to the ideas in Paradise Lost.
It is unclear if she and the little imps (teenagers) romping around in
the glow of the evening throughout this video are working for good or
for evil. To what ends do they run and through the woods, in search of
what?
Director Charles Mehling has crafted a career of beautiful make-up
ads, making already stunning women look even more so for the camera with
clever tricks of lighting and angle. Pantene and Rimmel dot his resume.
Naturally he applies that beauty aesthetic to the look and feel of
“Glow,” creating an eternal magic hour look on Henderson’s already
lovely skin.
But as Henderson describes in the listeners of her song as “soldiers
of the light” and a spotlight shows us the outline of several teenage
figures marching in a loose formation, there is the feeling that this
uplifting song has been matched with a visual of the tragedy of human
experience. The children frolic around in glowing light with no clear
purpose or intent. At times the aesthetics make them look malevolent as
well as angelic. Are these angels dark, Milton might wonder? Or are they
simply in desperate search for freedom — that same freedom Adam &
Eve craved in paradise."