"To search for the light" is "Quaere lumen" or "Quaere lucem".
buscar
Man of Light in latin is "Luce"
ex lucis ad lucem (possibly)
Lux immortalis es.
In Latin you could say specula lucis, or pharus, or ignis.
Mea lux. (mea looks)
I am far from fluent in Latin personally, but an online translation suggests: Secundum obscurum , lux lucis
Light of God would translate into Latin as lux dei.
Liberi regis lucis aeternae.
you say helmet in latin (casco)<- in latin
To say "Who am I?" in Latin you can say "quisnam sum Ego?"
How do you say determined in Latin?