The Ayyám-i-Há, or Intercalary Days, hold a special place in the Bahá’í calendar as a time for joy, generosity, and preparation for the Fast. These days, typically observed from February 26 to March 1, are dedicated to hospitality, charity, and spiritual reflection. They serve as a period of respite and festivity before the Bahá’í month of fasting begins. During the Fast, Bahá’ís abstain from food and drink from sunrise to sunset as a means of spiritual rejuvenation and discipline. This sacred period is an opportunity for believers to deepen their connection with the divine and cultivate gratitude and compassion. Bahá’u’lláh’s writings on these observances emphasize their spiritual significance, encouraging followers to engage in acts of kindness and to prepare their hearts and minds for the transformative experience of the Fast.
My God, my Fire and my Light! The days which Thou hast named the Ayyám-i-Há (the Days of Há, Intercalary Days) in Thy Book have begun, O Thou Who art the King of names, and the Fast which Thy most exalted Pen hath enjoined unto all who are in the kingdom of Thy creation to observe is approaching.
Bahá’u’lláh, Prayers and Meditations, 271
https://oceanlibrary.com/link/8cwTB/prayers-and-meditations-by-bahaullah/
Let your vision be world-embracing…” — Bahá’u’lláh