The Salaat which takes the human being to Meraj (ascension), which causes the human being to progress is the Salaat with heartfelt presence. If you want to have heartfelt presence when performing Salaat, listen to this advice: Whenever you want to perform Salaat, imagine that it is your last Salaat. It has been narrated that whenever Imam Sajjad (AS) wanted to perform Salaat, that Salaat was farewell Salaat, he used to perform Salaat in a way that it was his last Salaat [1].
[1] Sokhanane Ayatollah Mojtahedi Tehrani (RA), Khanik Website, 94/4/2 (22 June 2015).
source : shafaqna