Philippians 6 Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. 7 And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.
In Western Culture, the color purple is a symbol of wealth and royalty. People that rule places are often seen wearing the color purple. It is sometimes seen as artificial because it isn't often seen in nature. Purple is also the color of mourning widows