To wrap up something or someone so as to enclose them; to envelop or surround (also used figuratively).
母は赤ちゃんを毛布で優しく包み込んだ。
The mother gently wrapped the baby in a blanket.
柔らかい光が部屋全体を包み込んだ。
A soft light enveloped the whole room.
彼女は包み込むような笑顔でみんなを安心させた。
She put everyone at ease with an embracing smile.