About 666 moons ago this month (what a number) a future big hit song by American singer Aretha Franklin (same title as this post) was released. It offered currently relevant lyrics, considering the reader question below, after my mutilation of some of the original song's words, for which I request forgiveness:
For long, long years, I thought life was the plan
But I found out, I'm just a link in some chain, oh
It got me where it wants me, I ain't nothing but its fool
It treated me so mean, oh, it treated me cruel
Chain, chain, chain (chain, chain, chain)
Chain of fools 🎵🎶
The reader asks:
Up, Up & away! After this human existence, where do we go next? Just further up the "fool" chain?
(The first three words of this question come from about 670 moons ago, same year as above  a hit song released by The Fifth Dimension.
The Committee responds:
We go nowhere. You remain right where you are, where you have always been and shall always be. What you will see again is who you are and what is your home. In your human English here and there are but a small letter difference as occurs in most human languages. This has happened because here and there are the same place looked at from opposite sides.
No fools exist, thus none exist as humans. Words and the meanings humans give and accept for them, have effects because these are beliefs.
We are you and you are we; we are us. We are all one, and we are always together. Nothing foolish applies to human incarnation except the misbegotten notion —a most voluntary human choice— that so could life be.
We prefer to say after the human experience, because y/our existence is eternal.
What happens before a soul incarnates, during the journey and after the trip finishes, all such things are chosen. Some things in advance of birth, some things afterwards, some things on the spur of the moment and often chosen by someone else, making the occurrence seem random. To some participants it is, but this is not common. The random, matter-of-frate nature something might have, is a choice for the human to see, feel and pass through the event with this perspective.
To respond to what an incarnation veteran soul does, usually s/he goes on tour, as humans would call the process or activity. S/he attends groups of souls gathered to meet with and hear from the veteran of Earth incarnation, to ask questions and stand in the experience temporarily.
You might, may and can provide the chance to any soul who asks, to spend a brief moment in the experience you had, to share the sensations and then your learning & growth from it. This is not usually possible without the permission of and invitation by the veteran soul, so as can be imagined, the chance to glimpse into the brief moments of experience a soul traversed, such opportunity is seized by many a fellow soul in Heaven.
You will all do what you choose, the options are so many we could never list them all; you would reach your death before finishing a reading of the list.
Be well, one and all. Do return.