Your questions aren't disrespectful in the least, worry not.

[For a brief moment, Rose is being serious. It's refreshing to see someone who cares for the world around them, and she is grateful to be able to put her training to use.]

I wouldn't be summoning them, they already exist here. I would merely be holding a conversation with them; usually, there are no ways for the spirits to communicate with mankind, not directly. Having a conduit tends to put them at ease.