No World Apart From Mind

The Ribhu Gita (ऋभुगीता) forms the sixth part of Siva Rahasya Purana. It details in about two thousand verses the dialogue on the Self and Brahman between Sage Ribhu (who in turn heard it from Lord Shiva Himself) and Sage Nidagha on the slopes of the Mount Kedara in the Himalayas. (source: wikipedia). 

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• No world exists during the absence of the mind, and there is no mind apart from my awareness. So, mind and world are nothing apart from the Self, and I am ever that sole Existence-Awareness-Brahman-Self. The wise one should abolish all thought of differentiation of self and non-Self.
• I see neither mind nor world during my sleep. In my dream there is mind with its creation, the dream world. The dream world is falsified in my waking state. But I-Self exist always. Arguing thus, one must give up all differentiation of self and non-Self and ever abide firmly as the thought-free alert Awareness-Self-Brahman.
• All diversities of world, mind, maya, wakefulness, dream, sleep, talk of you and me are evanescent, and yet not apart from the Self. Thus wise one should give up all the thought of Self and non-Self and abide as Self only.
• In dim light the illusion of a serpent is seen in a rope, and this serpent is nothing but the rope. Even so all illusion of non-Self exists in the Self only. Thus wise one should give up all the thought of Self and non-Self and ever abide firmly in the peace of the Self.
• In the wisdom of integral experience, I am the non-dual, transcendental, motionless, peaceful, bondage-freedom-notion-free sky of pure consciousness only. With this experience one should reject all differentiation of Self and non-Self and ever abide firmly in the peace of Brahman-Self.
• One should give up all hatha yogic practices like breath control, all religious dogmas and their diverse sadhanas and be ever satisfied in simple abidance as the Self only.

From "The Essence of Ribhu Gita" by Prof. N. R. Krishnamurthi Aiyer