Let's put it that way - simpler way <English>

When we're stressed, it might be because of our surrounding, or a person, or collective individuals, or things, etc. 

But we have to recall that our attitude could also impact our surrounding, or a person, or collective individuals, or things, etc. 

So, when your reaction towards the stress source might have bad effect, then keep it to yourself, else if you react well and are able to use it as motivation, then do share 'cause your sparks could light up someone's life. :) 

:3