In Buddhism,
"not to attach oneself to something"
means that we should not invest too much importance in worldly things,
or pursue them with too much energy.

In reality, most people in the world have strong attachments to fame, money, food, lust, and sleep.

This inevitably brings worry and suffering.

It is necessary to train yourself to be wise,
so you do not let yourself be overwhelmed by worries and suffering.

Instead of taking worldly things to heart and doing stupid things as a result,
we should always see things from a different angle.

Everything will vanish in due time.

Life is like a dream or an illusion, and everything will eventually he gone.