btw: I was reminded of the story of Eros (Cupid) and Psyché because,.
like Phanes, Eros is a luminous divinity who demands that his bride accepts
his anonymity and invisibility.
From Wikipedia: "Psyche, the most beautiful woman in the world is
envied by her family as well as by Venus. An oracle of Venus demands she be sent
to a mountaintop and wed to a murderous beast. Sent by Venus to destroy her,
Cupid falls in love and flies her away to his castle. There she is directed to
never seek to see the face of her husband, who visits and makes love to her in
the dark of night. Eventually, Psyche wishes to see her sisters, who jealously
demand she seek to discover the identity of her husband. That night, Psyche
discovers her husband is Cupid while he is sleeping, but wakes and scars him
with her candle. Infuriated, he flies to heaven and leaves her banished from her
castle..." Another version is more explicit: Psyché burns
Cupid's genitals with the dripping candle she lights to
get a glimpse of her lover.
The contrast between "invisible/hidden" and "manifest" gains a mythical
form in the work "The Metamorphoses of Apuleius" (The Golden
Ass).