What do you mean, the right place at the right time?

For example, when you go out on a long voyage, the weather is sunny, not stormy. Then the weather.

For example, if you open a shop, it is located in the downtown area and there are many people passing by. Not in a deserted place. You found the right place.

Harmony means that you have a problem that you can't solve, you have a person who can solve this problem, and you get harmony.

The right place at the right time and to put it bluntly is your luck and your experience.