Kuvera, who is known as the son of Idavida, was very pleased with Dhruva Maharaja because he did not ask him for anything materially enjoyable. Kuvera is one of the demigods, so one may put forward the argument, Why did Dhruva Maharaja take a benediction from a demigod? The answer is that for a Vaisnava there is no objection to taking a benediction from a demigod if it is favorable for advancing Krsna consciousness. The gopis, for example, worshiped Katyayani, a demigoddess, but the only benediction they wanted from the goddess was to have Krsna as their husband. A Vaisnava is not interested in asking any benediction from the demigods, nor is he interested in asking benedictions from the Supreme Personality of Godhead. It is said in the Bhagavatam that liberation can be offered by the Supreme Person, but even if a pure devotee is offered liberation by the Supreme Lord, he refuses to accept it. Dhruva Maharaja did not ask Kuvera for transference to the spiritual world, which is called liberation; he simply asked that wherever he would remainwhether in the spiritual or material worldhe would always remember the Supreme Personality of Godhead. A Vaisnava is always respectful to everyone. So when Kuvera offered him a benediction, he did not refuse it. But he wanted something which would be favorable to his advancement in Krsna consciousness.