A promise of absolute peace and elevated status can be understood on two parallel planes: as security and success in the present physical world, or as the ultimate tranquility of the soul in the afterlife.
Viewed through an earthly lens, this peace takes the form of resting in complete safety, entirely free from any person or danger that might cause fear [מצודת דוד, מצודת ציון]. However, this deep sense of security can also be understood on a spiritual and eternal level. Drawing upon the imagery of a flock resting peacefully after grazing, this concept describes a person finding ultimate rest in the grave after the exhaustion of worldly life. It is a secure repose, liberated from the harms of the world, physical desires, and the internal struggles that plague the soul during its lifetime [מלבי״ם]. This tranquility in death even extends to the physical body remaining whole. The suffering a person endures during their lifetime serves as a shield after death, allowing them to lie at rest without any destructive force harming them [אלשיך].
Accompanying this profound peace is a promise of great influence, where others actively seek favor and present their requests [מצודת ציון, שטיינזלץ]. In the physical world, this means that the most important and prominent members of society will come to your door [מצודת ציון]. Recognizing your power and ability to help, the leaders of the nation will seek your assistance in fulfilling their needs [מצודת דוד, שטיינזלץ].
Yet, if this promise is understood as referring to the afterlife, it raises a natural question: how can people seek favors from someone who has already passed away? This points to the practice of praying at the resting places of the righteous [מלבי״ם]. In times of public distress, people will gather at your grave to plead for mercy. There, you will serve as a heavenly advocate on their behalf before God, ensuring that their prayers are received and answered from heaven [אלשיך].