Sankaracarya's Vivekachudamani 561

पत्रस्य पुष्पस्य फलस्य नाशवद्

देहेन्द्रियप्राणधियां विनाशः ।

नैवात्मनः स्वस्य सदात्मकस्या

नन्दाकृतेर्वृक्षवदस्ति चैषः ॥

patrasya puṣpasya phalasya nāśavad

dehendriyaprāṇadhiyāṃ vināśaḥ |

naivātmanaḥ svasya sadātmakasyā

nandākṛtervṛkṣavadasti caiṣaḥ |

(Sankaracarya's Vivekachudamani 561)

Like the destruction of a leaf, flower or fruit does not affect the tree; even so, by the destruction of the body, sense-organs, pranas and intellect, the Self, the eternal Reality, is never affected. It is the embodiment of Bliss which is one's own Real Nature and abides like the tree.