We all know flow, even if we don't yet know what to call it: that blissful state of absorption, when you're so engaged with what you're doing that you don't notice the time passing. Psychologists have discovered that this still, almost meditative condition brings us a host of mental health benefits: balance, tranquility, and stress reduction. Jigsaw puzzling is an easy way to find flow, which is why it has boomed so dramatically in recent years.

With the second of Skittledog's Flow puzzles, illustrator Elin Svensson uses harmonious forms and colors, inspired by tropical reefs, to take the puzzler on a gentle journey to a place of calm.

In a new spin on the traditional jigsaw, this circular design, centered on a shining sun, is designed to be completed from the middle out.

Includes a poster with the complete illustration to help you on your puzzling journey