Śrīmad-Bhāgavatam is not meant for the street boys, or who are accustomed to read so many nonsense literature. They want to waste their time. They have no engagement. They purchase some book, fictitious book, and read it. Not only they—even elderly men, they read it. But this book is different from those books. It is meant for person . . . those who are desiring to get out of this world of ignorance. Tamo 'ndham. Gṛha andha-kūpam. Andha. Andha means blind or darkness.
So our materialistic way of life is described as gṛha andha-kūpam (SB 7.5.5). This family life is just like dark well. We are already in the darkness, and another darkness is to fall in the dark well. If one falls down in the dark well, it is very difficult to get out, because he may cry very loudly and people may not hear. These dark well are sometimes there in the paddy field.
I have seen one dark well. In your country, when I was guest in John Lennon's house in 1969, we saw in the garden there was a dark well. Dark well means a very deep ditch, well, but it is covered with grass. You cannot know that there is a deep well, but while walking, you may fall down within it. And it is already covered with grass, and it is very deep. If you fall down and you try to get out of it, because it is lonely place, nobody is there, nobody may hear you, and you may simply die without any help.