PLD is just 1-2-3 and you get 1 stack Divine Might which you use for Holy Spirit and 3 stacks of Atonement. Then you have burst phase with FoF that you always use with Req, when you have Req, you just use your Faith combo. You use Goring in burst, use Intervene, Scorn and Explacion on CD, then you also want to drop 1-2 Atonement to properly realign. That's everything regarding rotation. It's like 2-3 steps away from just spamming 1-2-3, it's really simple if you spend 5-10 minutes reading tooltips/checking opener.
This simple imagine explains like 90% of PLD.
https://i.imgur.com/1XeKU4Y.png