For an author, one of the nicest parts of the traditional book is the dedication page. The dedication is far more than an acknowledgement to someone who helped you write the book, it's a permanent signpost, a capstone to the work of a year or more.
Even if the person you've dedicated the book to can't read it, the writer benefits from the knowledge that a connection was made and that a memory was preserved.
Here's the thing: you can dedicate just about anything. A project, a meeting, a tweet. You don't have to tell anyone but yourself. This blog post, like all the posts before it, has a dedication page, at least in my head.
When you start creating for and in honor of those that have made a difference to you, your work changes.