देह

Deha means the body, the instrument in which we live and act. In the Gita the word usually comes paired with dehī, the one who has the body, so that body and embodied one are seen as a pair.

Verse 2.18 says these bodies have an end, while the one who dwells in them is eternal. Verse 2.13 says that in this very body childhood, youth and old age come, so the body is always changing. And the image of 2.22 compares bodies to worn clothes, which the wearer leaves in order to take new ones.

The purpose of this distinction is not to make the body small. The body is the very instrument with which the Gita later speaks of practice and action. The distinction does only this: it stops us resting our identity on the body alone, and stops us from concluding, when someone dear is gone, that everything they were has gone.

Gratitude for the body and the moha that clings to it are two different things. The Gita wishes to free us from the second, not from the first.