Holiness is being set apart to someone or something. If I am set apart to Yahweh in all I do, then when someone is nasty to me, I might want to presume that that person, needing Jesus, has been put in my path so that I can manifest Him to them and introduce them to Him.
When things are going well, it should also be a testimony of the fact that my life is set apart to serve Yahweh. The Root of Jesse should spring up, blessing many, because I am present:
“And in that day there shall be a Root of Jesse, Who shall stand as a banner to the people; For the Gentiles shall seek Him, And His resting place shall be glorious.” Isaiah 11:10 – NKJV