Namaskar dear Sri Sudhanshu:
Thanks for sharing the pdf with the translation of the Paingala Upanishad on the Deepavali day! What you have stated in the concluding last paragraph is summarized also in this well known Vishnu Mantra and I am posting it here.
शान्ताकारं भुजगशयनं पद्मनाभं सुरेशं
विश्वाधारं गगनसदृशं मेघवर्ण शुभाङ्गम् ।
लक्ष्मीकान्तं कमलनयनं योगिभिर्ध्यानगम्यम्
वन्दे विष्णुं भवभयहरं सर्वलोकैकनाथम् ॥
Shaantaakaaram Bhujaga Sayanam Padma Naabham Suresam
Vishwaadhaaram Gagana sadrusam Megha varnam Shubhaangam
Lakshmikaantham Kamala nayanam Yogi hrudyaanagamyam
Vande Vishnum Bhava Bhaya Haram Sarva Lokaika Natham !!
Salutations to Lord Vishnu who is always pleasant and rests on mighty serpant AdiSesha, Who is having a Lotus emerged from his novel in which Lord Brahma was born, He is the lord of all divine beings and is the root cause for this entire universe with the color of sky. He is self glorious and is the divine consort of Goddess of Wealth and Prosperity, Mahalakshmi, Whose eyes are like petals of Lotus, Who is always praised by Yogis, Rishis and Munis. He removes all mental ailments and dwells in Vaikunta.
You seem to interpret Vishnu as Swarga where as most consider Vishnu is inseparable fromVaikunta. Most believe that Swarga is temporary whereas Vaikunta is Permenant.
Happy Deepavali to all!
Ram Chandran