<p>Having a relative path, how do I turn it into an absolute one from the location where the elisp file that I'm loading is. That is, I have an elisp file that I'm loading, it has an relative path and I need an absolute one.</p>

You can use the
```
expand-file-name
```
function to convert a relative filename or path into an absolute filename/path.  Look
here
for additional information.