a) There are no missing parts within nature.

b) Putting parts together cannot make whole, hence a puzzle coming within a box, and each connecting part is surrounded by an outline...representing the moving differentiation of whole (motion) into partials (matter) within a box (momentum).

c) Whole implies one...as does each one partial within. Without whole setting partials apart from one another, other ones couldn't tempt one to puzzle together.

d) Puzzling together tempts one to miss that nature sets each thing within apart from one another. The missing part implies ones lack of self discernment.

e) Here's a little background about the Maier family behind the Ravensburger jigsaw puzzles...

• 1885: Maier published a collection of patterns for stonemasons.
• 1945: Otto Maier Verlag survives World War II undamaged and receives a publishing license.
• 1959: The game MEMORY is launched.
• 1960: The game MALEFIZ ("Barricade") is introduced.
• 1964: Ravensburger puzzles are launched