Who is giving the pushing?

Prabhupāda:" Motion. So one must give the motion. Then another motion, another motion, another motion. Just like big, big, that trucks, railway, trucks. The engine pushes one truck. Have you seen shunting? The, the truck pushes. Another truck, another, kat, kat, kat, kat, kat, kat, kat, kat. Like that."
Brahmānanda: Shunting, yeah.
Prabhupāda: "So who is giving the pushing? The living entity, driver. A big truck is being pushed: kata kak kata kak kata kak kata kak, one after another. Similarly the whole creation, Kṛṣṇa is giving the pushing. Then one after another, one after another, one after another working. You see. mayādhyakṣeṇa prakṛtiḥ sūyate sa-carācaram [Bg. 9.10]. That is stated in the Bha... mayādhyakṣeṇa. Kṛṣṇa gives the pushing first. Then everything comes, one after another. But His pushing capacity is so perfect that everything is coming out perfect, perfect, perfect, perfect. Just like Kṛṣṇa says: bījo 'haṁ sarva-bhūtānām [Bg7.10]. "I am the seed of everything created." Now take the seed of the banyan tree. Kṛṣṇa has created. He says, "I am the seed." Now you sow the seed. A big tree will come out. Big tree will come out. Not only big tree. Many millions of seeds will come out of it. And each seed, again big tree. So the original seed, Kṛṣṇa, pushes. Then one after another, one after another, one after another... So you are simply observing when the things are coming into existence by such pushing. But you are trying out, trying to find out who is the original pusher. That you do not know. That you do not know. Who has originally pushed this energy? That you do not know."
[Morning Walk -- December 3, 1973, Los Angeles]