Srimad Bhagavatam Canto 07, Chapter 03, Text 01

SB 7.3.1

sri-narada uvaca
hiranyakasipu rajann
 ajeyam ajaramaram
atmanam apratidvandvam
 eka-rajam vyadhitsata
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Narada Muni said to Maharaja Yudhisthira: The demoniac king Hiranyakasipu wanted to be unconquerable and free from old age and dwindling of the body. He wanted to gain all the yogic perfections like anima and laghima, to be deathless, and to be the only king of the entire universe, including Brahmaloka.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Such are the goals of the austerities performed by demons. Hiranyakasipu wanted to receive a benediction from Lord Brahma so that in the future he would be able to conquer Lord Brahma’s abode. Similarly, another demon received a benediction from Lord Siva but later wanted to kill Lord Siva through that same benediction. Thus self-interested persons, by demoniac austerity, want to kill even their benedictors, whereas the Vaisnava wants to remain an ever-existing servant of the Lord and never to occupy the post of the Lord. Through sayujya-mukti, which is generally demanded by asuras, one merges into the existence of the Lord, but although one sometimes thus achieves the goal of the theory of monism, one falls down again to struggle in material existence.
Srimad Bhagavatam Canto 07, Chapter 03, Text 02