Narasimha Chaturdashi is the divine appearance day of Narsimhadeva
Narasimha Chaturdashi is the divine appearance day of Narsimhadeva, Lord Krishna’s incarnation as half-man half-lion, who removes all obstacles on the path of devotional service out of His great compassion.
tava kara-kamala-vare nakham adbhuta-srngam
dalita-hiranyakasipu-tanu-bhrngam
keshava dhrta-narahari-rupa jaya jagadisa hare
"O Keshava! O Lord of the universe! O Lord Hari, who have assumed the form of half-man, half-lion! All glories to You! Just as one can easily crush a wasp between one's fingernails, so in the same way the body of the wasp like demon Hiranyakashipu has been ripped apart by the wonderful pointed nails on Your beautiful lotus hands."
"The fourth incarnation is Nrisimhadeva. Nrisimhadeva appeared to save Prahlada Maharaja, who was five-years-old boy and he was being tortured by his atheistic father. So He appeared from the pillar of the palace as a half-man, half-lion. Because this Hiranyakasipu took benediction from Brahma that he’ll not be killed by any man or any animal. So the Lord appeared neither man nor animal. This is the difference between the Lord’s intelligence and our intelligence. We are thinking that we can cheat the Lord by our intelligence, but the Lord is more intelligent than us. This Hiranyakasipu wanted to cheat Brahma by indirect definition. First of all he wanted to become immortal. Brahma said, “That is not possible because even I am not immortal. Nobody in this material world is immortal. That is not possible.” So Hiranyakasipu, the demon… The demons are very intelligent. He thought that “Round about way I shall become immortal.” He prayed to Brahma that “Please give me the benediction that I shall not be killed by any man or any animal.” Brahma said, “Yes, that is all right.”
“I shall not be killed in the sky, on the water or on land.” Brahma said, “Oh yes.” “I shall not be killed by any man-made weapons.” “That’s all right.” In this way he utilized his intelligence in so many ways just to come to the conclusion of being immortal. But the Lord is so cunning that He kept intact all the benediction given by Brahma, still he was killed. He said that “I’ll not be killed either during daytime or night.” Brahma said “Yes.” So he was killed just in the evening, just in the junction of day and night. You cannot say it is day or night. He took the benediction that “I shall not be killed in the sky, on the water, on the land.” So he was killed on His lap. He took the benediction that “I shall not be killed by any man-made or any God-made weapons.” That was given, “All right.” So he was killed by the nails. In this way, all the benedictions were kept intact, still he was killed. Similarly, we may make plan, we may make very advancement in scientific knowledge, but the killing process of nature will be there. Nobody can escape. By our intelligence we cannot escape. The four principles of material existence means birth, death, old age and disease. We can manufacture many medicines, many weapons, many means, many methods, but you cannot escape these four principles of material existence, however great you may be. That was proved by Hiranyakasipu. Hiranyakasipu was one of the stalwart materialistic and he wanted to live forever, enjoy, but he also could not live. Everything was finished" (A.C. Bhaktivedanta Swami Prabhupada. 18th February 1970. Class on Sri Varaha-dwadasi purporting the Dasavatar-stotra – Ten main incarnations of the Lor. Los Angeles.)
Lord Nrisimhadeva’s Appearance Day
Srila A.C. Bhaktivedanta Swami Prabhupada. Srimad-Bhagavatam 7.5.22-34. Los Angeles, May 27, 1972, 720527SB.LA
Prabhupada: So today, appearance day of Lord Nrisimhadeva. Lord Nrisimhadeva appeared on this Nrisimha Caturdasi on account of His devotee, Prahlada. As it is stated in the Bhagavad-gita, yada yada hi dharmasya glanir bhavati bharata, abhyutthanam adharmasya [Bg. 4.7]. Paritranaya sadhunam vinasaya ca dushkritam, sambhavami yuge yuge [Bg. 4.8]. The Lord appears with two purposes. Paritranaya sadhunam: just to give protection and rescue the devotees, and to kill the demons, vinasaya ca dushkritam. So Prahlada Maharaja, five-years-old boy, his only fault was that he was Krishna conscious. He was devotee of Krishna. That was his only fault. And the father was so unkind to a child, even five years old. He could not excuse, “Oh, let this boy do whatever, chanting Hare Krishna.” No. The demons are so much against God consciousness that even at his home he would not allow his own child