In truth, Krishna, God, the Supreme Person has placed us in this material world, because we have become envious of Him.
The Lord said : By your intrinsic nature, you are a living soul of purely spiritual essence. The material body cannot be equated with your true identity, neither can the mind, intelligence or false ego. Your true identity is to be the eternal servant of Krishna, the Supreme Lord. Your status is transcendent in nature. The higher energy of Krishna is of spiritual essence while the lower, external energy is of material essence. Located between these two energies, you therefore belong to the marginal energy of Krishna, which means that you are one with Him while being distinct from Him. Being spiritual in nature, you are identical to Krishna. But because you are only a tiny fragment of it, you are at the same time different from Him.
The Lord adds : When an individual being, believing himself to be different from Me, forgets his identity spiritual, according to which he is qualitatively One with Me, both in eternity and in knowledge and bliss, his conditioned material existence then begins. In other words, instead of identifying his interests in Mine, he begins to be interested in the extensions of his body, such as his wife, his children and his material possessions. Thus, by the effect of his actions, one birth is followed by another, and a death another death.
All those who are in our material galaxy, have come there for one and the same reason :
They wanted to experience the same pleasure as Krishna, God, the Supreme Person. This is how they were sent to this material world to be conditioned there to varying degrees by material nature.
Do not listen to the demonic disbelievers who claim that the individual spiritual being that each of us is, is the equal of God, the Supreme Person, for therein lies the cause of existence conditioned by material nature. As soon as an individual spiritual being distinct from God forgets his own position and seeks to become one with the Absolute (God), his conditioned existence begins.
It is indeed the conception according to which the Supreme Lord and the spiritual being distinct from God are equal not only qualitatively, but also quantitatively, which is at the origin of conditioned existence. Anyone who forgets the difference that exists between the Supreme Lord and the individual being, is subject to the conditions of the material world, which implies that he will have to abandon a material body to accept another, and die to die again.
Whoever refuses to comply with the orders of the Supreme Lord is granted the power to enjoy existence in the material universe. Rather than restraining the conditioned being, the Lord provides the latter with the opportunity to enjoy life in this world, so that, through a proven experience, he comes to understand after very many rebirths or reincarnations, that surrender to God is the sole duty of all beings.