to be content; to have enough; to be happy; to be sufficient; to be satisfied
to rise (of the tide)
彼女は満ち足りた表情で空を見ていた。
She gazed at the sky with a contented expression.
彼は人生に満ち足りている。
He is content with his life.
質素な暮らしに満ち足りるのが真の幸福だ。
To be content with a simple life is true happiness.