Brihadaranyaka Upanishad 4.3.10

4.3.10

na tatra rathā na rathayogā na panthāno bhavantyatha rathānrathayogānpathaḥ sṛjate na tatrānandā mudaḥ pramudo bhavantyathānandānmudaḥ pramudaḥ sṛjate na tatra veśāntāḥ pṛṣkariṣyaḥsravantyo bhavantyatha veśāntānapuṣkariṇīḥ sravantīḥ sṛjate sa hi kartā

There are no chariots, nor animals to be yoked to them, nor roads there, but he creates the chariots, animals and roads. There are no pleasures, joys, or delights there, but he creates the pleasures, joys and delights. There are no pools, tanks, or rivers there, but he creates the pools, tanks and rivers. For he is the agent.