When you create an article through Wikipedia's Articles for Creation process, it creates a draft in the Drafts area. The purpose of AfC process is to help new editors learn how to write better articles.
If accepted, your draft can be a valuable contribution to the encyclopedia. Wikipedia is over 17 years old and has well over five million articles. The vast majority of those articles never went through AfC which is only a few years old.
AfC works as a peer review process in which registered editors can either help create an article submitted or decline the article because it is unsuitable for Wikipedia. To nominate an existing draft or user sandbox for review at Articles for Creation, add the code {{subst:submit}} to the top of the draft or sandbox page. The AfC process allows others to review the draft when you are ready, and also to create the article for you, if it is suitable.