Collect Light Seeds from the place of the battle, then start sliding down on wooden footbridges.
Jump onto the wall to get 8 and 9. Then bounce back in a proper moment. Few Light Seeds can be found inside the tower.
Jump onto green Power Plate and collect the balls from the walls and ceiling while you are running.
Follow the same route which you took before healing the location.
As a result you should collect at least 19 seeds.
You will have to bounce off one of side walls to obtain 20.
You should be able to see another green ring from the terrace.
27 and the following ones can be collected while going towards City of Light.
Light Seeds starting with 33 - on the way to location Ahriman's Tower.
39 and 40 are situated under the place where number 11 used to be.
You can collect last five Light Seeds using Hand of Ormazd ability.