Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 6
Sanskrit:
ये त्वानन्येन भावेन भावयन्त्यात्मभावनम् ।आत्मनि प्रोतभुवनं परं सदसदात्मकम् ॥ ६ ॥
ITRANS:
ye tvānanyena bhāvenabhāvayanty ātma-bhāvanamātmani prota-bhuvanaṁparaṁ sad-asad-ātmakam
Translation:
O lord, all these planets exist within your self, and all the living entities are generated from you. Therefore you are the cause of this universe, and anyone who meditates upon you without deviation attains devotional service.