Everyone is thinking, "I am secure. I am born in a very good nation, state. My body is very strong. My family members are very nice, well educated. I have got good bank balance, and I have got respectable position," so on, so on. He is thinking, "These things will save me." This world is struggle for existence, and when there is struggle, there are some soldiers. So ātma-sainyeṣu asatsu api. One is thinking that, "These are my soldiers. I'll own victory in the struggle for existence." But pramattaḥ tasya nidhanaṁ paśyann api na paśyati. But he's so mad, he knows that these things will be vanquished, and still he does not see to it. Paśyann api na paśyati. Therefore his anxiety.
So Prahlāda Mahārāja's, this version, sadā samudvigna-dhiyam asad-grahāt, "On account of accepting nonpermanent things as permanent, therefore he's full of anxiety." Sadā samudvigna-dhiyam asad-grahāt. Then what is the remedy? The remedy is hitvātmā-ghāṭaṁ gṛham andha-kūpam: "This andha-kūpam, dark well of ignorance, one must give up." Then vanaṁ gato yad dharim āśrayeta (SB 7.5.5): "He must go to vana." When one goes to vana, it is called vānaprastha. So after family life, according to Vedic civilization, one has to accept vānaprastha life. And when one is fully prepared, he takes sannyāsa after vānaprastha life. So vanaṁ gataḥ means one should prepare by going to the forest for the next life of renounced order of life. That is human civilization—brahmacārī, gṛhasta, vānaprastha and sannyāsa. Sannyāsa means fully engaged in Kṛṣṇa consciousness.