The five points are representative of the human body. Head, two out stretched arms, the trunk of the body, two legs slightly apart. The five is quincunx , the center, the meeting point of the heavens and earth.
When this layout is used in candle burning it moves the energy in a way to strengthen. It fortifies all within the assigned area. It creates a higher spiritual field. Visions are a possible manifestation within this field of energy.