Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 14

Sanskrit:

यथा ह्यप्रतिबुद्धस्य प्रस्वापो बह्वनर्थभृत् ।स एव प्रतिबुद्धस्य न वै मोहाय कल्पते ॥ १४ ॥

ITRANS:

yathā hy apratibuddhasyaprasvāpo bahv-anartha-bhṛtsa eva pratibuddhasyana vai mohāya kalpate

Translation:

Although while dreaming a person experiences many undesirable things, upon awakening he is no longer confused by the dream experiences.

Purport:

Even a liberated soul must observe material objects while living in this world. But being awake to Kṛṣṇa consciousness, he understands that sensory pains and pleasures, like dreams, are without substance. Thus the liberated soul is not bewildered by illusion.