Śrīmad-Bhāgavatam · Text 7.2.23
Who is speaking and story frame
यथाम्भसा प्रचलता तरवोऽपि चला इव ।
चक्षुषा भ्राम्यमाणेन दृश्यते चलतीव भू: ॥ २३ ॥
yathāmbhasā pracalatā
taravo ’pi calā iva
cakṣuṣā bhrāmyamāṇena
dṛśyate calatīva bhūḥ
Because of the movements of the water, the trees on the bank of a river, when reflected on the water, seem to move. Similarly, when the eyes move because of some mental derangement, the land appears to move also.
Read Śrīla Prabhupāda's purport on Vedabase.io