It all has to do with head ship, Christ head of the Church, Husband head of the woman. Man praying with his head covered (being in the image of God), dishonors his head (God). Woman her hair being her glory, praying with head uncovered dishonors her head (Husband).
1St Peter 1:12 the Angels desiring to understand these things, are looking into. It seems there is a courosity among the Angels to understand Man, Salvation, and the relationship of these things.