Is the Book of Esther real?

One can read The scroll of Esther (especially in Hebrew) and can find very strong symbolism in its writing, for instance:

Esther the name is quite interesting;

there was a Zarathustra (the ancient religion in Persia) goddess named Ishtar.

(there was also a Zarathustra god name Murdoch which resemble Mordecai).

Esther can also be read as "hide" in Hebrew - which is set with the role of god in the events of the scroll (a hidden intervention in history).

The scroll of Esther is special in that: it doesn't discusses god.

To conclude in Jewish studying of The Bible the tradition is that you read the text many times and can find new meanings in it, you start however, in reading it "pshat" - simplified - and only then you can research it more. The scroll is to be read as a regular story.