A priestess mentioned that you might come — as you have already visited the Lord Protector Siranto! Only those people who are gifted are privileged to know the password phrase may be admitted to the priestess.
I talked to the guards in front of the Palace of the Wind until my head aches. Then I caught the innuendos she was saying; only the unusual and gifted people in the taverns of the Isle of the Eternal Dawn might know the phrase.
So I went to Peladjar Inn to have few aids for my parched throat. And there I spoke with Samael, my very own spirit-guide. He told me the “password” was:
“M A G N O L I A”
Tha got me inside the Palace of the Wind.