[5] Baháʼu'lláh, who claimed to be the one foretold by the Báb, confirmed and adopted the Badíʻ calendar in the Kitáb-i-Aqdas, his book of laws.
[5][8] Under the Arabic abjad system, the letter Há has the numerical value of five -- the five-pointed star, or haykal (Arabic: temple) is a symbol of the Baháʼí Faith as mentioned by Shoghi Effendi, head of the Baháʼí Faith in the first half of the 20th century: "Strictly speaking the 5-pointed star is the symbol of our Faith, as used by the Báb and explained by Him.
"[9] The five-pointed star has been used as the outline of special letters or tablets by both the Báb[10] and Baháʼu'lláh.
[5] During the Festival of Ayyám-i-Há Baháʼís are encouraged to celebrate God and his oneness by showing love, fellowship and unity.
[5] It is also a time of charity and goodwill and Baháʼís often participate in various projects of a humanitarian nature.