Indestructible and destructible,-these are the dual forms of the (Supreme) Self. The existence it shows in all mobile and immobile entities is destructible; while the existence in shows in Chaitanya is celestial, immortal, and indestructible.
अक्षरं च क्षरं चैव द्वैधीभावोऽयमात्मनः। क्षरः सर्वेषु भूतेष दिव्यं तमृतमक्षरम्॥