The Servant of Almalexia is a spectral projection encompassing the knowledge of Almalexia.
Speak to the Servant of Almalexia to find out whether the Tribunal have heard Disciple Sildras's prayers.
They can be found later at Iliath Temple, where they will thank you for helping Disciple Sildras.
"My lady Almalexia bids you carry a message to Disciple Sildras."
Is there anything more?
"Tell him that My Lady is mindful of his doubt and fear. There is no shame in either, so long as he helps others bear their burdens.
By helping others, his fears will be allayed, but if he spreads his despair, My Lady will chastise him."
Who is Almalexia?
"Ah. You are the child whose soul was stolen. My Lady is concerned for you.
Almalexia is the Merciful Healing Mother of the Dunmer. She is the most beloved of the Tribunal."
That can't be all.
"I am merely a servant and messenger of my Lady, not a teacher or priest.
Seek the temples and libraries to learn more. Perhaps, in time, you may speak to Almalexia herself."