Spiritual Import of Religious Festivals :Ch-5. Part -15.
Swami Sivananda Chapter 5: Sivananda – The Fire of Sannyasa Part-15. The Isavasya Upanishad says, “Isavasyamidam sarvam, yat kincha jagatyam jagat.”— Whatever is moving or unmoving, sthavara or jangama, whatever is visible or invisible, all this is indwelt by the Supreme Being of God. The Upanishad also says, “Tena tyaktena bhunjithah.”—Here is the seed of vairagya and sannyasa at the very commencement of the Isavasya Upanishad. It says, “Renounce and enjoy.” Enjoy by renunciation, not by possession. The enjoyment that comes by renunciation is more intense than the enjoyment that comes by possession of the things of the world. That satisfaction or pleasure or enjoyment which seems to come to us by the acquisition of the objects of sense is a pain that comes to us in the guise of satisfaction. But that joy which comes to us by renunciation is a real and permanent joy. Why is it so? It is because renunciation is the relinquishment of false values, the abandonment of