I’ve observed this for quite some time now which I think it can be safely concluded that:
The amount of happiness relatively equals to the amount of the sadness.
Life itself feels like roller coaster1. Once you climb to the top of the track, it tends to bring you down to the bottom of the track. However, once you got to the lowest point, it’ll climb back the track, vice versa. Hence:
- Don’t be too happy when you’re happy.
- Don’t be too sad when you’re sad.
As this famous persian adage2 says:
This too shall pass