...is to connect to the part of yourself that's already peaceful.
That part of you is called your True Self.
It's peace comes from its inherent, unbreakable connection to Something larger than itself.
It has no attachment to anything: status, power, roles, etc. because it's contentment comes from within.
It's best accessed inside of silence and stillness, which requires relinquishing your attachment to our culture's definition of success: doing-doing-doing!
There's no need to try and become a True Self because you already are a True Self!
Rest in your simple being and there you'll revel in peace of mind.
"Peace be with you." John 20:19