All those in our material galaxy have come here for one reason: They desired to experience the same pleasure as Krishna, the Supreme Personality of Godhead. Thus, they were sent to this material world to be conditioned 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 equal to the Supreme Personality of Godhead, for this is the cause of existence conditioned by material nature. As soon as an individual spiritual being distinct from Godhead forgets his own position and seeks to become one with the Absolute (God), his conditioned existence begins.
Indeed, it is the conception that the Supreme Lord and the spiritual being distinct from Godhead are equal not only qualitatively but also quantitatively that is the origin of conditioned existence. Anyone who forgets the difference between the Supreme Lord and the individual being is subject to the conditions of the material world, which implies that he must abandon one material body to accept another, and die in order to die again.
One who refuses to comply with the orders of the Supreme Lord is granted the right 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 experience, they come to understand after many rebirths or reincarnations, that surrender to God is the sole duty of all beings. Since everything depends on the will of Krishna, the Supreme Personality of Godhead, our sole and only duty is to surrender to Him and seek His protection.
Embodying souls, who originally belong to the spiritual world, are sent to the material universe because they have become envious of the Lord.
But in truth, the major reason why God expels some souls from His realm is that they have rejected the loving and devoted service they were required to offer Him, an eternal duty that all souls perform. They thus had to immediately fall into the prison of this material world and accept a material body.
The degradation of all those living in the material cosmos, on whatever planets, is due to their disobedience and forgetfulness of their relationship with God. We are all, in truth, the eternal servants of Krishna. Our duty is therefore to serve Him with love and devotion. This is the perfection of existence.
It is the desire to dominate material nature that plunges the spiritual being into it.
It is only because he desires to dominate material nature that he is immersed in it. Such a desire has no place in the spiritual world, which is pure. In the material universe, everyone struggles to constantly find new “prey” of pleasure for their body. It should be noted that the body is the product of the senses, which are the instruments made available to the incarnate spiritual being to satisfy his desires.