Altar Maze (Chapel)

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.

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.

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.

Here comes one path that gets you to the end.  There appear to be several
winning solutions.

I'm labelling both the direction that you need to move and the colors of
the squares.  The square directly above the one you're standing on is called
1 and each of the other 5 possible directions are numbered in clockwise order.

Start 2 -> P 2 -> Y 2 -> P 2 -> Y 2 -> P 1