यद्वत्सौख्यं रतान्ते निमिषमिह मनस्येकताने रसे स्या -त्स्थैर्यं यावत्सुषुप्तौ सुखमनतिशयं तावदेवाथ मुक्तौ ।नित्यानन्दः प्रशान्ते हृदि तदिह सुखस्थैर्ययोः साहचर्यंनित्यानन्दस्य मात्रा विषयसुखमिदं युज्यते तेन वक्तुम् ॥ ७४ ॥
In plain words
A brief pleasure follows sexual union while the mind is gathered into a single taste. In Suṣupti, deep sleep, happiness remains for as long as that stillness lasts. In Mukti, liberation, the quiet heart knows Nityānanda, bliss without end. Because happiness accompanies steadiness, every pleasure of sense is only a small measure of Nityānanda.
Close to the Sanskrit
As happiness at the end of sexual union lasts for a moment while Manas is held to one taste, and unsurpassable happiness lasts in Suṣupti, deep sleep, only so long as steadiness lasts, in Mukti there is Nityānanda—eternal bliss—in the pacified heart. Happiness thus accompanies steadiness; sense pleasure may therefore be called a mere measure of Nityānanda.