Wanna achieve lofty goals?
Wanna accomplish lots?
Wanna hold big responsibilities?
If yes then start measuring your life in terms of projects. Not in terms of titles or achievements or awards but just projects. It is much easier to handle aspirations via projects than aspirations itself.
A project means it has a start date and end date (and that date can be today morning to today evening). It has an objective and a tangible deliverable. A project could be career related, community related, home related or life related. A project is a project is a project. Keep building your life as a bunch of projects and significance is inevitable.