昌: Prosperous; thriving. When used in personal names, it often conveys the meaning of flourishing and prosperity, greatly aiding one's career and fortune.
斯: This person, this moment. It conveys a sense of refinement, the awe-inspiring dignity of a sage, and the dedication of one who lives and breathes their principles morning and night.
Meaning: Chang signifies prosperity and flourishing, while Si conveys elegance and refinement, making the name harmonious and auspicious.