yin and yang

if you see the symbol of yin and yang, what do you think?

this is what i think. see this:
"hell" in hello
"good" in goodbye
"lie" in believe
"over" in lover
"end" in friend
"ex" in "next"
"if" in life
every good things have bad things inside, and bad things also have good things inside

the white side have a black spot. and the black one have a white spot

so, the conclusion is,
we have to know the consequence before we do something. or, we'll regretted after we're done with that things.