Endless Knot/Eternal Knot (shrivatsa) cross stitch PDF pattern (2 versions)

The endless knot (or eternity knot) appears on engravings from the Indus Valley Civilization dating back to 2500 BCE. It's a 7(4) knot configuration, meaning there are 7 crossings and a braid width of 4. The knot (or other configurations of equivalent knots) appears in symbolism of Buddhist sects from India to China to Japan, as well as in Celtic imagery and Jainist symbolism.

The knot symbolizes cycles, the cyclic nature of life and existence, the intertiwining of wisdom and compassion, duality, and balance. 

My sample stitch (the red one) is done on 32ct (over 2) opal hand-dyed linen and displayed in a 5" embroidery hoop.

This pattern does also have one unusual conceit, which is that once it's completed, it is displayed in the hoop or frame with the fabric rotated 45 degrees off of the vertical. That's what gives the piece its striking diagonal lines without being broken up into little diamond or x-shaped stitches.

Details:

Size: 55x55 stitches (see images for sizes on various fabric counts)
Colors: 7
Difficulty: ⚫⚪⚪⚪⚪ Beginner
Pattern format: ZIP file of PDF in symbols + colors | 2 color schemes, blue or red 
Also includes JPG of high res scan of my finish for reference
Download also includes a high-res scan of my finished sample stitch for reference.