Hey i have an question lore wise.

I've gotten far enough to understand that our story takes place 5 fears after the calamity. The calamity being bahamut's release and being thrust forward in time. ( i thank youtube videos of the end of 1.0).

Here's the question: was Bahamut resealed away and thats where the coil raids come in?

there's a scene with your respective scion when you start the game, when the echo first occurs for your character, but Dalamud is in the sky. If you look around the sky after the scene, day or night, you don't see Dalamud.

Additional Questionfor understanding the scene better) when does the scene take place in the timeline?

The scene is after the golem fight with the Ascian in the MSQ's and makes it appear that the scion was running to the location that you first meet the scion.