We know that being born as human, we have a purpose. It is only in human birth, we have the ability to alter the state of mind. No other birth or lokas have the choices that we have. All of them are the result of the karmaphala out of this human birth. They are the births for "bhoga" or "enjoying the fruits". Only in human birth we have the combination of bhoga and karma. whereas the bhoga component is "enjoying the fruits" of the previous births, the karma component readies us for the future births.

So all the lokas in the ecosystem has a purpose individually. Once in this pyramid, the purposes are well known.

However as I move out of this pyramid, then the question comes, why this pyramid and what is the purpose of this pyramid. Is this as permanent as the Brahman ?

Presently I am clueless on this.

Love and best wishes