Never regret. If it’s good, it’s wonderful. If it’s bad, it’s an experience. — Victoria Holt

Although you might say the same thing about loss or grief, opportunities that can give you major leaps forward in your life are rare. Sometimes, something passes by that you should be able to recognize using your life’s experience. But instead of taking action, you watch it go by and believe it will reappear or work in your favor. Usually, something happens, and it doesn’t lead to a final result. You look back at all the signs you should have noticed. But in life and love, like luck, it passed you by, and you didn’t notice it or procrastinated until it was too late. 

“Preparation meets opportunity” is what luck really is about, so be prepared. 
Satoru