I've always been fascinated by numerology and astrology, and the number 18 has come up in my research quite a bit. In some traditions, 18 is considered auspicious because it symbolizes prosperity and success—think of the Hebrew word 'chai,' which means 'life' and has a numerical value of 18. People often donate in multiples of 18 for good luck. But in other systems, like certain branches of Chinese numerology, 18 can be seen as conflicting because it breaks down to 1 and 8, which might clash energetically.
That said, I don’t think numbers are universally 'lucky' or 'unlucky'—it’s more about personal resonance. If you feel drawn to 18, maybe it holds a special vibration for you. I’ve met folks who swear by it for manifesting abundance, while others avoid it altogether. It’s one of those things where intuition matters more than rigid rules.