Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Moksha-Sanyasa Yoga Chapter 18, Verse 18.36.
Sanskrit
सुखं त्विदानीं त्रिविधं शृणु मे भरतर्षभ । अभ्यासाद्रमते यत्र दुःखान्तं च निगच्छति ॥ १८.३६ ॥
Hindi
हे भरत श्रेष्ठ ! अब तीन प्रकार के सुख को भी तू मुझसे सुन । जिस सुख में साधक मनुष्य भजन, ध्यान और सेवादि के अभ्यास से रमण करता है और जिससे दुःखों के अन्त को प्राप्त हो जाता है —- जो ऐसा सुख है, वह आरम्भ काल में यधपि विष के तुल्य प्रतीत होता है, परन्तु परिणाम में अमृत के तुल्य है ; इस लिये वह परमात्मा विषयक बुद्भि के प्रसाद से उत्पन्न होने वाला सुख सात्विक कहा गया है ।
English
Now great Arjuna, I will disclose to you the three types of pleasure that exist in this world. There is a divine and pure pleasure that one receives from following the righteous path of ‘Light and Goodness.’ This path leads to the end of all hardship.
The Blessed Lord Spoke: O Arjuna, that which in the beginning may seem to be the cup of sorrow but is found in the end to be the cup of sweet nectar, refreshes one to the state of self-realization. This, My Dear Devotee, is pure pleasure and happiness which allows one to clearly see and feel Me, the Spirit within their hearts. This pleasure is known as the SAATVIC pleasure, O Arjuna.