Srila Prabhupada - Vedic Teachings

  "So vadanti tat tattva-vidas tattvam. Those who know what is Absolute Truth, they say that is the Absolute Truth which is advaya-jñāna. Advaya-jñāna means without any duality. Just like here in this material world it is called dual world, duality. Everything cannot be understood absolutely. If I say . . . it is a, rather in ordinary language, relative world. Here everything is relative. Just like if I say: "father," "father" has no meaning if there is no son. Duality. If I say: "good," so unless I have got idea of bad, I cannot understand good. If I say "light," unless I have got conception of darkness, I cannot understand light. So here everything is duality, relative knowledge, relative world, but in the absolute world everything is one, spirit. Here . . . because here we have got experience two energies, spiritual energy and material energy, working. The material energies are the physical elements, bhūmir āpo 'nalo vāyuḥ (BG 7.4): e...

                                            „ When we speak of non- Kṛṣṇa , or desire which has no connection with  Kṛṣṇa , this does not mean that anything exists without  Kṛṣṇa . Actually there cannot be anything "non-Kṛṣṇa" because everything is a product of the energy of  Kṛṣṇa . Since  Kṛṣṇa  and His energies are identical, everything is  Kṛṣṇa  indirectly. For example, consciousness is common to every living entity, but when consciousness is purely centered on  Kṛṣṇa  ( Kṛṣṇa  consciousness), it is pure, and when consciousness is centered on something other than  Kṛṣṇa , or when it is directed to sense gratification, it may be called non- Kṛṣṇa  consciousness. Thus it is in the polluted state that the conception of non- Kṛṣṇa  comes. In the pure state, however, there is nothing but  Kṛṣṇa  conscious...