Śrīmad-Bhāgavatam · Texts 4.29.76-77
Who is speaking and story frame
यथा तृणजलूकेयं नापयात्यपयाति च ।
न त्यजेन्म्रियमाणोऽपि प्राग्देहाभिमतिं जन: ॥ ७६ ॥
यावदन्यं न विन्देत व्यवधानेन कर्मणाम् ।
मन एव मनुष्येन्द्र भूतानां भवभावनम् ॥ ७७ ॥
yathā tṛṇa-jalūkeyaṁ
nāpayāty apayāti ca
na tyajen mriyamāṇo ’pi
prāg-dehābhimatiṁ janaḥ
yāvad anyaṁ na vindeta
vyavadhānena karmaṇām
mana eva manuṣyendra
bhūtānāṁ bhava-bhāvanam
Translation
The caterpillar transports itself from one leaf to another by capturing one leaf before giving up the other. Similarly, according to his previous work, the living entity must capture another body before giving up the one he has. This is because the mind is the reservoir of all kinds of desires.
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