The world, in which you exist is created out of a single stuff.+

The world in which you exist is created out of single stuff. The Single stuff is the Soul, which is present in the form of consciousness.  The world in which you exist is nothing but consciousness. 

If the world in which you exist is consciousness then the form, time, and space within the world in which you exist is also consciousness.

The Soul is the root element of the universe. The Soul is present in the form of consciousness. From the Soul, the universe comes into existence. In the Soul, the universe resides. And into the Soul the universe dissolves. 

The Soul, which is present in the form of the consciousness, is the parent of all that is there is.  The Soul, which is present in the form of consciousness, is the ultimate truth or Brahman or God in truth.

Bhagavad Gita: ~ Brahmano hi pratisthaham ~ Brahman (God) is considered the all-pervading consciousness, which is the basis of all the animate and inanimate entities and material. (14.27).

Chandogya Upanishad: ~ sarvam khalvidam brahma ~ All this (universe) is verily Brahman (consciousness). By following back all of the relative appearances in the world, we eventually return to that from which it is all manifest – the nondual reality. 

Consciousness is the only reality in which the universe exists, to which the universe belongs; from which the universe has emerged, which is the cause of the universe and which itself is uncaused.  Thus, the universe is nothing but consciousness. :~Santthosh Kumaar