Naw-Rúz is one of nine Baháʼí holy days and the only one that is not associated with an event in the lives of either the Báb or Baháʼu’lláh. It is usually a festive event observed with meetings for prayer and music and dancing. Since the new year also ends the Baháʼí month of fasting the celebration is often combined with a dinner. As with all Baháʼí holy days, there are few fixed rules for observing Naw-Rúz, and Baháʼís all over the world celebrate it as a festive day, according to local custom.
Bahá’u’lláh adopted the new Badi calendar and the use of Naw-Rúz as a holy day. The day follows the Bahá’í month of fasting, and He explained that Naw-Rúz was associated with the Most Great Name of God, and was instituted as a festival for those who observed the fast.
The symbolic notion of the renewal of time in each religious dispensation was made explicit by the writings of the Báb and Bahá’u’lláh and the calendar and the new year made this spiritual metaphor more concrete. ‘Abdu’l-Bahá explained that significance of Naw-Rúz in terms of spring and the new life it brings. He explained that the equinox is a symbol of the Manifestations of God, who include Jesus, Muhammad, the Báb and Bahá’u’lláh among others, and the message that they proclaim is like a spiritual springtime, and that Naw-Rúz is used to commemorate it.