Thank you rideforever.
I don't know a thing about any of those other people you mentioned, but I feel I know your perspective a little more now, so thank you.
I tend not to look to teachers but to look at life/source as my guide who will bring me into line with opportunities to open in love, or close down in fear, and through the experience learn the wisdom or folly of my choices.
For the original question - if you are paying attention to readying your lesson notes you are present. If you are doing so with love - regardless of even if anyone shows up for the class, you are overflowing with joy.
If you are appreciative of all the elements that combine together to allow you that opportunity you can do anything in a state of enthusiasm. And in this state you are living the full potential of fluid source/creation incarnate from your perspective.
Regardless of where you are, what you're doing, you can be this full appreciation and willing perspective of creation.
Why I like Tolle's 'easy' explanation - he gets to this point in his books.
If you are making enemy, obstacle, means to an end of a thing you're closing yourself off from creation and will feel the discord until such time as you melt the armour of fear and this can only be done by accepting we're not the CEO of our universe. And in that acceptance - we've opened our door (portal) to creation/source to flow freely again.
So my sense of the answer to the question, from my experience -
" if the absolute exists what is the purpose of creation?"
To be alive in as many different perspectives as are willing to open the door.
- but I'd only be guessing, because I am only one perspective that receives the immense energy and connection with all when I am willing to open the door.
Tolles words ring true for me because I feel the difference in the range of states when I'm in different states, and I see the difference in others depending on their states.
I've come to embrace all of this with the same love and enthusiasm that I feel when I resonate in harmony with creation energy - which is why I am able to sincerely and knowingly say - no choice is wrong, it just brings a different experience.
I myself used to bang my head against the door saying why is this door here, why is this door here - now if I ever find I've closed that door I 'notice' the lack of harmony and go 'oops' and open the door, rather than banging my head against it.
Life is simple, it's only people that complicate it