Key points from this section:

• Nature of Heavenly Beings: The section explains that there are two kinds of beings in heaven: resurrected beings with bodies of flesh and bones, and spirits of just men made perfect who have not yet been resurrected.

• Identifying True Messengers: It provides three grand keys to distinguish between true messengers from God and false spirits. For example, a true angel will shake hands and you will feel their hand, while a spirit will not move to shake hands.

• Detecting Deception: The revelation teaches that if a devil appears as an angel of light and you ask to shake hands, you will not feel anything, thus revealing the deception.

Read this chapter for free at https://byustudies.byu.edu/online-book/doctrine-and-covenants-contexts/section-129.