In his message, the top Iranian parliamentarian said the three principles of good thought, good words and good deeds are indications to the strives of the followers of Zoroaster to defend elevated humanitarian and ethical values.
Larijani appreciated any kind of efforts by the followers of any of the divine religions to hold dialogue to promote insight and good human relations.
The speaker further hoped that holding such gatherings would be continued in future with the objectives of gaining invaluable achievements to the benefit of future generations.
Also on Friday, in a message to the congress, Iranian President Hassan Rouhani said that the world nations are thirsty for justice and equality which of course can be easier materialized through boosting interaction and understanding among the followers of different religions.
Iranian president said that Today's world is more in need of coexistence among various faiths and religions.
He added that solidarity and understanding among the followers of various faiths and religions is a necessity for neutralizing the evil efforts aimed at inciting sectarian strife among people.
He called on the followers of all the religions to stand united and shun divisions.
The pre-Islam faith of Zoroastrianism is one of three recognized minority religions in the country together with Christianity and Judaism.
Iran is the birthplace of Zoroaster, the prophet of Zoroastrians.