That's right! I've just discovered that it's a big deal if one starts his story off with a flashback of past events or whether he describes those events in a choronological order or retrospectively. It does matter if you torrent the reader with unnecessary descriptions or throw him headfirst into the action, just like a battlefield skirmish, decorating bits of details here and there. Unlike in real life where things exist and their purpose may never be discovered, in a story everything that is there has to have a purpose, a meaning. It's like symbolic objects in a painting -- nothing that you see in a painting is there on a whimsical basis. I'm just in the middle of learning of how to use this focus shifting to my advantage to make the most out of my story.