Rama Navami
Sri Rama-navami is the glorious appearance day of Lord Ramachandra. Srila Prabhupada writes in his commentary to the Srimad-Bhagavatam,

Being prayed for by thedemigods, the Supreme Personality of Godhead, the Absolute Truth Himself, directly appeared with His expansions and expansions of the expansion. Their holy names were Rama, Lakshmana, Bharata, and Satrugna. These celebrated incarnations thus appeared in four forms as the sons of Maharaja Dasaratha.

The Lord descends on this material world out of causeless mercy and displays various transcendental pastimes as a human being so that human beings can become attracted to Him, associate with His devotees, and become able to go back to Godhead.

On Rama-navami, Lord Ramachandra’s pastimes are discussed in the morning. Murtis of Their Lordships Rama, Lakshmana, Sita-devi, and Hanuman are decorated with beautiful outfits, flowers and jewels, and placed on the platform below the altar. Devotees assemble at the temple at noon. An abhisheka for the Salagrama-sila is performed amidst kirtana, and flowers are offered at the lotus feet of Their Lordships (pushpanjali). The devotees fast till sunset on Rama-navami day.