Illusionary power of Lord Shiva over Narada Muni
Narad Muni wins over Kamadev
Once upon a time, The great Narada muni was performing tapas at the Himalayas where the Lord Shiva Used to perform regularly. Lord Indra Was fearful about this and hence sent Kamadev to obstruct Narad Muni's tapas. But Kamadev remembered about what had happened to Him when he had done the same to Lord Shiva. So he Backed off. After Narad Muni's tapas was completed ,He was so proud to Hear this, so he wanted to narrate this to the Mahadev.
So he went to the Kailash and met Mahadev(lord Shiv), he narrated the whole story, Lord Shiva listened the whole story quitely though he knew about it earlier, as He is considered to be a TRIKALA DARSHI, the one who knows the past,present,future. Then Lord shiv smiled , but told Narad Muni not to telll this to anybody. But Narad Muni waas not impressed about Lord shiva's comments. So he went to Lord Brahma, and narrated His story , Lord Brahma to smiled and asked him to not tell this to anybody. But still not satisfied, Narad Muni went to Lord Narayana( Maha Vishnu) and narrated the story of how he won over Kamdev. So Lord Narayana too smiled , but this time he realized that, this was all Lord shiva's illusionary power. so he remained silent.
Narad's ego destroyed
So after Lord Narayana's darshan he was returning back from there, until he saw a beautiful city ruled by King Sheelnidhi. He came to know that Sheelnidhi had arranged a swayamwar for His daughter. Narad muni also went there out of curiosity. Then infatuated by her beauty, Narad Muni immediately came to Lord Vishnu and asked Him to make Narad Muni as handsome as he was. Lord Vishnu turned Narad's whole body just like His, except his head. It seemed like a monkey's head. Narad never noticed this.
At the swayamvar,
Lord Narad was present , along with Maha Vishnu.The King's Daughter saw Narad with the Monkey's Face, and turned to Lord Maha Vishnu , and offered the garland to him. Narad Muni noticed his face like a Monkey and got angry over this feat.
So he left to Vaikunta, and cursed Maha Vishnu that the Lord would be born as a commom man and would be separated from his wife.; And a monkey would come for their rescue.
Lord Vishnu accepted Narad's curse without any hesitation, and then he removed the illusionary power over Narad. Narad realized his mistake and Bowed down seeking Lord Maha Vishnu and Lord Shiv's blessing.
om namah shivaya