Acceptance of impermanence as the right of passage to adulthood? My take on Buddha's teaching The Buddha encouraged us to find out for ourselves whether what he was saying was true.

I say the same. Feel free to find what is true for you.

The Buddha invented a rite of passage to adult age.

He said that we need to accept impermanence.

This makes us adult.

As long as we refuse impermanence, we are still children.

Impermanence is a polite word for failure, illness, decay, loss, death and all the **** life throws at us.

During the years 50s and 60s teenagers lived a rite of passage to adult age consisting in racing on the edge of a cliff, possibly to death (see film Rebel Without a Cause). 

They thought that it's better to die than to live your entire life as a never-grown child.

Society abolished rites of passage to adult age.

Every time we accept impermanence we make our adult self-image stronger.

Every time we accept discomfort, failure, mistakes, illness, decay, suffering, pain, loss and death we make ourselves invincible.

The base of this rite is that what we accept helps us, what we refuse kills us.

This is a psychological law.

Every time we decide to accept impermanence we are Enlightened.

Impermanence is not the key here, acceptance is.

What do you think? What's the core of Buddha's teachings?
“Rāhula, you should truly see any kind of form at all—past, future, or present; internal or external; coarse or fine; inferior or superior; far or near: all form—with right understanding: ‘This is not mine, I am not this, this is not my self.’” --MN62