1288
Śrīmad-Bhāgavatam
[ Canto 4, Ch. 28 ]
guided by the King of the Yavanas, who acts as their commander-in-chief. The word  diṣṭa-kāriṇaḥ  indicates that he is their commander. When a man is young, he does not care for old age but enjoys sex to the best of his satisfaction, not knowing that at the end of life his sexual indulgence will bring on various diseases, which so much disturb the body that one will pray for immediate death. The more one enjoys sex during youth, the more he suffers in old age.
TEXT 2
त एकदा तु रभसा पुरञ्जनपुरीं नृप । रुरुध्रुभौमभोगाढ्यां जरत्पन्नगपालिताम् ॥ २ ॥
ta ekadā tu rabhasā   purañjana-purīm nṛpa   rurudhur bhauma-bhogāḍhyām   jarat-pannaga-pālitām
te —they;  ekadā —once upon a time;  tu —then;  rabhasā —with great force;  purañjana-purīm —the city of Purañjana;  nṛpa —O King;  rurudhuḥ —encircled;  bhauma-bhoga-āḍhyām —full of sense enjoyments;  jarat —old;  pannaga —by the serpent;  pālitām —protected.
TRANSLATION
Once the dangerous soldiers attacked the city of Purañjana with great force. Although the city was full of paraphernalia for sense gratification, it was being protected by the old serpent.
PURPORT
As one's body engages in sense gratification, it becomes weaker and weaker daily. Finally the vital force becomes so weak that it is herein compared to a weak serpent. The life air has already been compared to the serpent. When the vital force within the body becomes weak, the body itself also becomes weak. At such a time the death symptoms—that is, the dangerous soldiers of death's superintendent, Yamarāja—begin to attack very severely. According to the Vedic system, before coming to such a stage one should leave home and take  sannyāsa  to preach the message of God for the duration of life. However, if one sits at home and is served by his beloved wife and children, he certainly becomes weaker and weaker