What visible luminous sign attracted Bloom’s, who attracted Stephen’s, gaze?

In the second storey (rere) of his (Bloom’s) house the light of a paraffin oil lamp with oblique shade projected on a screen of roller blind supplied by Frank O’Hara, window blind, curtain pole and revolving shutter manufacturer, 16 Aungier street.

How did he elucidate the mystery of an invisible attractive person, his wife Marion (Molly) Bloom, denoted by a visible splendid sign, a lamp?

With indirect and direct verbal allusions or affirmations: with subdued affection and admiration: with description: with impediment: with suggestion.

Both then were