[pestaa]

I believe the main point was to isolate your emotional state from impacts, and not to "be happy about bad things."

You have to maintain your well-being in the long term by being friend to good people and, well, not being shot, but in the short-term reinforcing positive thinking might just save you from a worse situation.

[maxerickson]

I had a similar thought recently, that it is a good thing to accept my emotional reactions, but that I did not have to embrace them.

(further explanation would involve rambling about the reaction being part of who I am but the embracing making it a bigger part of who I am)