By using this greeting on earth, we are practicing the etiquette of the Hereafter, reminding ourselves of our final destination.
Yet, the most famous numeric link is this: In Surah Al-Fatiha , the servant asks for guidance to the Siratal Mustaqeem (Straight Path). The scholars of Tafsir say that the destination of that path is Dar us-Salam (The Abode of Peace). Thus, reciting the seven verses of Fatiha seven times (49 total recitations) is a formula for inviting Salam into one’s life. 7 salam