Text 3811
Conclusion—The Perfection of Renunciation
حوالا
times comes to the end of all distress. That which in the beginning may be just like poison but at the end is just like nectar and which awakens one to self-realization is said to be happiness in the mode of goodness.
PURPORT
A conditioned soul tries to enjoy material happiness again and again. Thus he chews the chewed, but, sometimes, in the course of such enjoyment, he becomes relieved from material entanglement by association with a great soul. In other words, a conditioned soul is always engaged in some type of sense gratification, but when he understands by good association that it is only a repetition of the same thing, and he is awakened to his real Krṣna consciousness, he is sometimes relieved from such repetitive so-called happiness.
In the pursuit of self-realization, one has to follow many rules and regulations to control the mind and the senses and to concentrate the mind on the Self. All these procedures are very difficult, bitter like poison, but if one is successful in following the regulations and comes to the transcendental position, he begins to drink real nectar, and he enjoys life.
TEXT 38
विषयेन्द्रियसंयोगाद्यत्तदग्रेऽमृतोपमम् । परिणामे विषमिव तत्सुखं राजसं स्मृतम् ॥३८॥
viṣayendriya-saṁyogād 
    yat tad agre’mṛtopamam 
    pariṇāme viṣam iva 
    tat sukhaṁ rājasaṁ smṛtam
viṣaya —objects of sense;  indriya —senses;  saṁyogāt —combination;  yat —that;  tat —which;  agre —in the beginning;  amṛta-upamam —just like nectar;  pariṇāme —at the end;  viṣam iva —like poison;  tat —that;  sukham —happiness;  rājasam —in the mode of passion;  smṛtam —is considered.
TRANSLATION
That happiness which is derived from contact of the senses with their objects and which appears like nectar at first but poison at the end is said to be of the nature of passion.