Lydia was a well to do Asian business woman living in Philipi. She was known for the fine purple dye she made. As Paul and others came to Philipi, they found Lydia, a Jewess,  at the water praying with a few other gals. The apostles told the ladies things of the Lord, and Lydia as well as her household became believers. Her home then became a meeting place for Christians. You can read about Lydia in Acts 16.

This block is called "Purple Cross". The purples for the fine fabric that Lydia was known for, and the pink is for the love she had for Jesus.