With deliberation, one will see that the Supreme Soul, although manifested in different ways, is actually the basic principle of everything. The total material energy is the cause of the material manifestation, but the material energy is caused by Him. Therefore He is the cause of all causes, the manifester of intelligence and the senses. He is perceived as the Supersoul of everything. Without Him, everything would be dead. You, as that Supersoul, the supreme controller, are the only one remaining.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
स एव हि पुनः सर्ववस्तुनि वस्तुस्वरूपः सर्वेश्वरः सकलजगत्कारणकारणभूतः सर्वप्रत्यगात्मत्वात्सर्वगुणाभासोपलक्षित एक एव पर्यवशेषितः
sa eva hi punaḥ sarvavastuni vastusvarūpaḥ sarveśvaraḥ sakalajagatkāraṇakāraṇabhūtaḥ sarvapratyagātmatvātsarvaguṇābhāsopalakṣita eka eva paryavaśeṣitaḥ
SB 6.9.38