Srimad Bhagavatam Canto 04, Chapter 08, Text 37

SB 4.8.37

padam tri-bhuvanotkrstam
jigisoh sadhu vartma me
bruhy asmat-pitrbhir brahmann
anyair apy anadhisthitam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
O learned brahmana, I want to occupy a position more exalted than any yet achieved within the three worlds by anyone, even by my father and grandfather. If you will oblige, kindly advise me of an honest path to follow by which I can achieve the goal of my life.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
When Dhruva Maharaja refused to accept the brahminical instruction of Narada Muni, naturally the next question would be what sort of instruction he wanted. So even before Narada Muni asked, Dhruva Maharaja expressed his heartfelt desire. His father, of course, was the emperor of the entire world, and his grandfather, Lord Brahma, was the creator of the universe. Dhruva Maharaja expressed his desire to possess a kingdom better than those of his father and grandfather. He frankly stated that he wanted a kingdom which had no competitor within the three worlds, namely the higher, middle and lower planetary systems. The greatest personality within this universe is Lord Brahma, and Dhruva Maharaja wanted a position even greater than his. He wanted to take advantage of Narada Muni’s presence because he knew very well that if Narada Muni, the greatest devotee of Lord Krsna, could bless him or show him the path, then certainly he would be able to occupy a more exalted position than any person within the three worlds. Thus he wanted help from Naradaji to achieve that position. Dhruva Maharaja wanted a position greater than that of Brahma. This was practically an impossible proposition, but by pleasing the Supreme Personality of Godhead a devotee can achieve even the impossible.
One particular point mentioned here is that Dhruva Maharaja wanted to occupy an exalted position not by hook or by crook, but by honest means. This indicates that if Krsna offered him such a position, then he would accept it. That is the nature of a devotee. He may desire material gain, but he accepts it only if Krsna offers it. Dhruva Maharaja was sorry to refuse the instruction of Narada Muni; therefore he requested him to be merciful to him by showing a path by which he could fulfill his mind’s desires.
Srimad Bhagavatam Canto 04, Chapter 08, Text 36
Srimad Bhagavatam Canto 04, Chapter 08, Text 38