The topic is a starting point, not the the end. Ideally you create an image (photography, illustration, mixed media, anything you want really) or a text (short story, poem, thoughts, ...) and send it (or a link to the work) to email@example.com. If you don't have the time, but want to participate, you can try to find an older work suiting the topic. That everything should be yours (blah blah copyright) i probably don't have to mention.
After the deadline I'll go through the material, sort what is in or out, try to find connections between work (for double page layout), try to find a flow (for page order) and design the magazine itself.
Once it is finished I'll upload a PDF to the website, everyone can download and read/appreciate it for free. Contributors are not monetarily compensated, the project is ment to be a kickstarter for creativity / inspiration. I won't do anything with the work other than use it for the magazine.
The technical details are on the website (top right).