Currently have no internet, that'll be fixed by tomorrow.

[@Aviaire] Technically no, unless they are in close proximity to their Seeker. Even then their manifestation allows them little capability of interacting with the material world. Shrouds are largely imperceptible by normal entities. Shrouds can see other Shrouds and Seekers can see Shrouds,though the Shroud can choose not to present themselves. Oracle Emblem activation via use of an Honest Blade can force Shrouds in the area to be revealed. More on that, later.

As for how Resonance works. Or rather, is worked. Each Seeker has Resonance Pathways within their 'soul', which they pull free Resonance into; or channel their natural Resonance. Natural Resonance is produced by the Seeker, Ambient (free/loose) Resonance is present throughout the world.

To harvest any form of Resonance it has to be gathered, shaped and released. How a Seeker does this can depend. 

Sorry it took me so long to get around to that. If I've been inadequate in providing what you were looking for, let me know and I'll try typing out a more detailed explanation when I've got my internet working.

[@mercenarius] No rush, looking forward to it.

[@Flamelord] Ezekiel/Analisa are approved! You can move them on over. If I've missed anything glaring, I'll be looking over them again when I've got some time. Nothing struck me as incredibly out of place, during my initial read; so just consider them approved for now. If anything needs to be changed after my re-reading, I'll let you know☆

EDIT: [@AmeliaAnny] Sorry, missed mentioning you in the initial writing. No big rush. Once things are organized for me, tomorrow I'll probably work on some more details and maybe another character.