What is the real purpose of creation ?

Which creation specifically? The spiritual or the physical? The physical creation, i.e. the heavens (universe) and earth were created for man, who was to fill and subdue it.

To sing little "thank you's" to the creator

Isn't that a question for its Creator, rather?

nothing is created

* Deriving satisfaction

To Exist.

To live

Honestly just for the experience of it, I don't think there's a greater meaning to everything. We're here to be happy and make every other person we meet as happy as possible.