When the mad king first announced his decision to grant Seelima the Divine Ascension Ritual, the entire royal court reacted as if they had been struck by a bolt from the sky. Even Pasha Farzah, famed for his stoicness, was rendered speechless- one of only three times in his entire career that happened.
The reason for the shock was self evident: in two thousand years of Adhanian history, there had never been such a precedent.
There were some rare royal concubines granted this honor; however they were all of extremely noble birth and it was given to them almost always as a favor for some great accomplishments their family had done.
For instance- they might have put down a mighty rebellion, repelled a huge barbarian army from the north, significantly expanded the country's borders or made a truly astounding financial contribution to the royal treasury.