In the evening she went, and on the morrow she returned into the second house of the women, unto the custody of Shaashgaz, the king's chamberlain, keeper of the concubines. She came in to the king no more, unless the king delighted in her, and she were called by name.
Esther 2:12 And when every maiden's turn came to go in to king Ahasuerus after that she had been treated for twelve months, according to the manner of the women (for so were the days of their purification accomplished six months with oil of myrrh, and six months with spices, and with things for the purifying of the women,
Esther 2:13 and thus came the maiden in unto the king), whatever she desired was given her to go with her out of the house of the women to the king's house.
Esther 2:14 In the evening she went, and on the morrow she returned into the second house of the women, unto the custody of Shaashgaz, the king's chamberlain, keeper of the concubines. She came in to the king no more, unless the king delighted in her, and she were called by name.
Esther 2:15 And when the turn of Esther, the daughter of Abihail the uncle of Mordecai, who had taken her for his daughter, came to go in to the king, she required nothing but what Hegai the king's chamberlain, keeper of the women, appointed. And Esther obtained grace in the sight of all them that saw her.
Esther 2:16 So Esther was taken to king Ahasuerus, into his royal house, in the tenth month, that is, the month Tebeth, in the seventh year of his reign.
The verse centers on "called", "light", "evening", "went", "morrow", "returned", "second", and "house". It is saying that the verse draws attention to "called" and "light", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "and thus came the maiden in unto..." into verse 15's "And when the turn of Esther the...", so "called" and "light" belong inside that flow. In Esther context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "called" and "light" with trust shaped by these words, not by a vague optimism outside the passage.