Meaning of 中身 in Japanese

Definition of 中身

なかみ(nakami) 【中身 ·中味】

(n, adj-no) contents; interior; substance; filling; (sword) blade
財布の中身をこの袋に空けなさい。
Empty the purse into this bag.

The container may be the best in Japan, but if the contents are third class, then isn't it completely meaningless?

"Well he looks odd on the surface ... but he's even odder on the inside." "You're really not helping me there."

容器ようきを見ずに中身なかみを見よ。

Do not look upon the vessel but upon that which it contains.

彼かれは箱はこの中身なかみをあけたあける。

He emptied the box of its contents.

彼かれはポケットぽけっとから中身なかみを出した。

He emptied his pockets of their contents.

彼かれはコップの中身なかみを飲み干した。

He emptied his glass.

札入れさついれの中身なかみが紛失ふんしつしていたする。

The contents of the wallet were missing.

財布さいふの中身なかみをこの袋ふくろに空けあけるなさい。

Empty the purse into this bag.

引出しの中身なかみをからにしするなさい。

Empty the drawer of its contents.

There's a checkpoint at the border where they look in your trunk.