so this morning i had this combination come up, but not in a "reading." The sun was the card pulled and the empress was the shadow and the moon the cut.
so i am thinking together this could mean more than the sun alone.
the sun is about vibrance, heat, shining out and fun, childhood fun.
the moon is the light of day.. the disillusion alcohol. etc
the empress is nurturing and fertility.
if i look close and go off the hip i would say the combination could mean really hot sex...