What Good Is Sinawali?

I got the following question on my channel:

"I'm a bit embarassed to admit this having trained some FMA in the past, but I don't quite understand the real world application of sinawali. Is it purely a training tool, or attribute building thing, or is there more to it that I'm not comprehending? Thanks in advance. Love your videos and Instagram posts."

Here is my answer. I hope it helps.