Is it a calamity for the gods to descend to earth?
No. This is general. It is only said that it is general, and it cannot be said that it is a special existence.
There is a reason why most of the immortals descend to earth. For example, following God's will or voluntarily asking to go down to earth to complete a task.
More immortals are generally because they can't do it, they no longer meet the standards of the upper realm, and they want to be reincarnated, as for where they can go, it depends on which standard they can meet. There are also some celestial beings who have died in the world to which they belong, and who have no merit or fault, are also reincarnated in the so-called mortal realm.
Could it be that only the so-called immortals have a mortal word? Of course not. The devil has it too. Everyone gathers in one place with seemingly the same similar appearance, and is erased of past memories and cultivation, and the competition is very fair.
Therefore, everyone came to this world to complete the task together for various reasons. By the way, reincarnation is also a kind of task, because if you don't complete it properly, you can only go to hell, or fall into other more miserable inhumanity.
It is wise to treat life as a task. It is wise of the wise to do not do evil, but to do good.
People who have a little memory of the past are either extremely painful; Either it's a special tasker.
Only those who are not in reincarnation are eons.