Vivekachudamani 351

ततो विकाराः प्रकृतेरहंमुखा 

देहावसाना विषयाश्च सर्वे । 

क्षणेऽन्यथाभावितया ह्यमीषाम् 

असत्त्वमात्मा तु कदापि नान्यथा ॥ ३५१ ॥ 

tato vikārāḥ prakṛterahaṃmukhā 

dehāvasānā viṣayāśca sarve | 

kṣaṇe'nyathābhāvitayā hyamīṣām 

asattvamātmā tu kadāpi nānyathā || 

(Sankaracarya's Vivekachudamani 351) 

So too, the modifications of Nature, from the ego down to the gross body and all the sense-objects, are also unreal. They are unreal, indeed, because they are subject to change every moment. But the Self never changes. 

Lord Krishna said “The soul is unborn, eternal, never takes birth, and never dies. The soul is not destroyed when the body is destroyed.”