A teacher of mine once told me, "If you really want to help someone on their spiritual journey, shine your light on their path, not in their eyes."
"Brilliance" can make someone stand out or help those around them find their way. One is an ego trip, the other is about service.
Anyone who has encountered a genuine "beamer" knows that just being with them can be transformational. It's not what they say, even what they do that inspires so much as who they are. Who they are permeates everything they think, say and do; it creates a field of radiant influence around them. It's tangible, and it's empowering.
More light helps everyone see where they are, which is the starting point for where they want to go, whether they would think of it as their spiritual path or just the journey of a fulfilling life.
Disciples of authentic spiritual masters know this phenomenon well. It's what draws them thousands of miles to study with a teacher, what gets them up at 4:00 am to meditate, and - integrated through practice into their own state of being – it's what eventually turns seekers into masters.