TEXT 13
atah pumbhir dvija-srestha
varnasrama-vibhagasah
svanusthitasya dharmasya
samsiddhir hari-tosanam
SYNONYMS
atah—so; pumbhih—by the human being; dvija-sresthah—O best among the twiceborn; varna-asrama—the institution of four castes and four orders of life; vibhagasah—by the division of; svanusthitasya—of one's own prescribed duties; dharmasya—occupational; samsiddhih—the highest perfection; hari—the Personality of Godhead; tosanam—pleasing.
TRANSLATION
O best among the twice-born, it is therefore concluded that the highest perfection one can achieve by discharging the duties prescribed for one's own occupation according to caste divisions and orders of life is to please the Personality of Godhead.
PURPORT
Human society all over the world is divided into four castes and four orders of life. The four castes are the intelligent caste, the martial caste, the productive caste and the laborer caste. These castes are classified in terms of one's work and qualification and not by birth. Then again there are four orders of life, namely the student life, the householder's life, the retired and the devotional life. In the best interest of human society there must be such divisions of life, otherwise no social institution can grow in a healthy state. And in each and every one of the abovementioned divisions of life, the aim must be to please the supreme authority of the Personality of Godhead. This institutional function of human society is known as the system of varnasrama-dharma, which is quite natural for the civilized life. The varnasrama institution is constructed to enable one to realize the Absolute Truth. It is not for artificial domination of one division over another. When the aim of life, i.e., realization of the Absolute Truth, is missed by too much attachment for indriya-priti, or sense gratification, as already discussed hereinbefore, the institution of the varnasrama is utilized by selfish men to pose an artificial predominance over the weaker section. In the Kali-yuga, or in the age of quarrel, this artificial predominance is already current, but the saner section of the people know it well that the divisions of castes and orders of life are meant for smooth social intercourse and high-thinking self-realization and not for any other purpose.
Herein the statement of Bhagavatam is that the highest aim of life or the highest perfection of the institution of the varnasrama-dharma is to cooperate jointly for the satisfaction of the Supreme Lord. This is also confirmed in the Bhagavad-gita (4.13).

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