How is the world population increasing if the number of souls is conserved in the creation?

[Smt. Chhanda Chandra asked: Swami, it is said that the soul is beyond birth and death. The same souls come to this earth again and again with different bodies. My little understanding says then that the number of souls must be then conserved in this creation. But what we see is that the population of the world is going on increasing. Does it mean that the souls are getting split and taking more than one number of bodies? Or some other creatures are being converted to souls in human forms and their numbers are coming down? If any other divine mystery is there then what can it be? Please let me try to understand this as my very little understanding in science is not allowing me to have a clear concept on the same. Thank You very much for Your grace in every field of my life. At the divine lotus feet of You (me and my mother). By, Chhanda Chandra]

Swami Replied:- This point pertains to the divine administration of God. All the possibilities mentioned by you are possible. Which possibility predominates in which time becoming active depends upon the decision of God based on the requirement of the world. This point will not help you in your Spiritual progress. You must concentrate on your Spiritual progress by increasing devotion to God rather than finding information on such issues.

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