When Babuji Maharaj first gives us our first sitting, he calls it 'seeding'. He puts the seed of Himself into our heart. That is why the heart in yogic terms is called the hridayayoni. It is a creation of a new life where you are reborn within yourself as a new being, provided you allow that seed to germinate, water it with bhakti (devotion), shraddha (faith) and dhyana (meditation); then another Master comes there. Not Master as a Master, but exactly like the Master - another human individual.
Taken from the book "HeartSpeak 2004, Vol. 2", Chapter "Throwing Off the Shackles of the Past", pg. 94, by Revered Chariji