Mahabharata Santi Parva Chapter 332:3

Mahabharata Santi Parva (Mokshadharma Parva) Chapter 332:3 When animals and birds and beasts of prey and poor men are afflicted by ailments, who treats them with medicines? Indeed, these are not seen to be ill. Like larger animals assailing smaller ones, ailments are seen to afflict even terrible kings of fierce energy and invincible prowess. All men, reft of the power of even uttering cries indicate of pain, and overwhelmed by error and grief, are seen to be borne away along the fierce current into which they have been thrown. Embodied creatures, even when seeking to conquer nature, are unable to conquer it with the aid of wealth, of sovereign power, or of the austerest penances.[] If all attempts men make were crowned with success, then men would never be subject to decrepitude, would never come upon anything disagreeable, and lastly would be crowned with fruition in respect of all their wishes. All men wish to attain to gradual superiority of position. To gratify this wish they strive to the best of their power. The result, however, does not agree with wish.[] Even men that are perfectly heedful, that are honest, and brave and endued with prowess, are seen to pay their adorations to men intoxicated with the pride of affluence and with even alcoholic stimulants.[] Some men are seen whose calamities disappear before even these are marked or noticed by them. Others there are who are seen to possess no wealth but who are free from misery of every kind. A great disparity is observable in respect of the fruits that wait upon conjunctions of acts. Some are seen to bear vehicles on their shoulders, while some are seen to ride on those vehicles. All men are desirous of affluence and prosperity. A few only have cars (and elephants and steeds) dragged (or walking) in their processions. Some there are that fail to have a single spouse when their first-wedded ones are dead; while others have hundreds of spouses to call their own. Misery and happiness are the two things that exist side by side. Men have either misery or happiness. Behold, this is a subject of wonder! Do not, however, suffer thyself to be stupefied by error at such a sight! Cast off both righteousness and sin! Cast off also truth and falsehood! Having cast off truth and falsehood, do thou then cast off that with whose aid thou shalt cast off the former! O best of Rishis, I have now told thee that which is a great misery! With the aid of such instructions, the deities (who were all human beings) succeeded in leaving the Earth for becoming the denizens of heaven!' Hearing these words of Narada Suka, endued with great intelligence and possessed of tranquillity of mind, reflected upon the drift of the instructions he received, but could not arrive at any certainty of conclusion. He understood that one suffers great misery in consequence of the accession of children and spouses; that one has to undergo great labour for the acquisition of science and Vedic lore. He, therefore, asked himself, saying,—'What is that situation which is eternal and which is free from misery of every kind but in which there is great prosperity?'—Reflecting for a moment upon the course ordained for him to run through, Suka, who was well acquainted with the beginning and the end of all duties, resolved to attain to the highest end that is fraught with the greatest felicity.