The Lord went to the sacrificial arena of Bali Mahārāja and begged him for three paces of land, and on this plea the Lord took from him all his possessions. When Bali Mahārāja agreed to all this, the Lord was very pleased, and therefore the Lord serves as his doorkeeper. The description of Bali Mahārāja appears in the Eighth Canto of Śrīmad-Bhāgavatam.
When the Supreme Personality of Godhead offers a devotee material happiness, this is not His real favor. The demigods, who are very puffed up by their material opulence, pray to the Lord only for material happiness, not knowing anything better. Devotees like Prahlāda Mahārāja, however, do not want material happiness. Not to speak of material happiness, they do not want even liberation from material bondage, although one can achieve this liberation simply by chanting the holy name of the Lord, even with improper pronunciation.
Below Sutala is the planet Talātala, the abode of the demon Maya. This demon is always materially happy because he is favored by Lord Śiva, but he cannot achieve spiritual happiness at any time. Below Talātala is the planet Mahātala, where there are many snakes with hundreds and thousands of hoods. Below Mahātala is Rasātala, and below that is Pātāla, where the serpent Vasukī lives with his associates.