Editing Techiyat HaMeytim - Resurrection of the Dead (section)

==== "And Your People Are All Righteous" ====
<blockquote>All Israel have a portion in the World to Come, as it is said, "And Your people are all righteous, they shall inherit the land forever; they are the branch of My planting, the work of My hands, in which to take pride." — Sanhedrin, Chapter 10, Mishnah 1</blockquote>The reason for this is because every soul is literally a part of G-d from above, and it is impossible that a part of Him, blessed be He, should be destroyed.

And what is explained later in the Mishnah that there are wicked people who have no portion in the World (and in Rambam's writings he adds more), this means only that the body will not rise at the resurrection, but the soul will merit the World to Come and will stand in another body, after being cleansed in Gehinom and reaching the level of a tzaddik (righteous person) also in a revealed way, for "no one will be cast away from Him." This is also ruled in halacha that "a person should always study Torah even if not for its own sake," even though he draws the life-force of Torah and mitzvot to the kelipos (impure spiritual forces), since he will certainly eventually repent in this reincarnation or in another, and the life-force will ascend to holiness.

The body also has a remedy through repentance at the end of their days, or through punishment (of the body) from Heaven after death (and perhaps also through others' efforts on their behalf, especially when a son makes efforts for his father).