We know that Ghosts, using a fraction of the Travellers light, resurrect souls to become Guardians, but are people resurrected as a Warlock for example?
Or is it simply that people are resurrected and choose a role when they become a Guardian?
Is this covered in the lore at any point?
Best Answer
Actually, the classes aren't that much defined lore-wise. Any guardian can learn any ability, just like we can learn a new sport. Basically, any guardian can do whatever they want with the light, taking into consideration they have the knowledge and dedication to learn the skill. Quoting the Reddit user u/cptenn94:
Source: https://www.reddit.com/r/DestinyLore/comments/cmgw3n/do_guardians_get_to_choose_their_class_andor_can/