Ensign, November 2008, pg. 17; “This is a commandment with a promise. By participating weekly and appropriately in the ordinance of the sacrament we qualify for the promise that we will “always have his Spirit to be with [us]” (D&C 20:77). That Spirit is the foundation of our testimony.”
Ephesians 1:13; “In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise.”
When you ask Jesus to come live inside your heart you’ve “qualified” for the Holy Spirit. First though, you have to repent of your sins, confess Jesus is God and forsake all other gods, including those of the Mormon Church.