शरीरं यदवाप्नोति यच्चाप्युत्क्रामतीश्वरः। गृहीत्वैतानि संयाति वायुर्गन्धानिवाशयात् ॥

śharīraṁ yad avāpnoti yach chāpy utkrāmatīśhvaraḥ gṛihītvaitāni sanyāti vāyur gandhān ivāśhayāt

When the Lord acquireth a body and when He abandoneth it, He seizeth these and goeth with them, as the wind takes fragrances from their retreats

In plain words: Krishna says when the soul takes a body and when it leaves one, it carries the senses and mind along with it. It is like the wind carrying scents away from flowers.