Altar Maze (Chapel)

Hint 1 of 6:

I found that it helps to work backwards on this puzzle.  There is only one
stone that you can stand on just before landing on the green arrow.

Hint 2 of 6:

It's the purple square two or three steps from the arrow.  You might have
to take a twisted path to get from that purple to the arrow, but it's the
only path you can take.

Hint 3 of 6:

Then look for other purple squares 3 steps from the last purple or for
yellow squares 2 steps away or blue squares 1 step away.  Keep working until
you reach the starting square.