A block pattern is a collection of blocks you can insert into your site and customize with your own content. Patterns save you time when composing pages of any kind and are a great way to learn how blocks can be combined to achieve specific layouts.
Showcase your creations and make them publicly available in the Block Pattern Directory. Submitting a pattern to the directory means it can be referenced in themes and easily reused across sites—without requiring theme authors to bundle pattern code with each theme.