Why is it that only Mahans have divine visions and blissful experiences and not ordinary people?
Sri Sri Muralidhara Swamiji:
Incarnations are rare indeed and their case is different.
As for the rest, God does not discriminate between any of His creations. However, the divine experiences and visions depend on the extent of Sadhanas (spiritual practices) that one has performed. The sadhana that one performs is a continuation of the sadhanas of his previous births.
One can, no doubt, have divine visions and blissful experiences in this birth itself, if he incessantly chants the Maha Mantra with complete faith and devotion.
தேவரும் தெரிவரே தெய்வமும் பேசுமாம்
உலகம் வணங்கிடும் கீர்த்தனம் பாடீரே !
Oh, ye, sing! Oh, ye, sing! The HYMN! Which shows Devas [to you] and makes God speak [to you], and revered by the world!
Please check these: Excerpts from a discourse by our Sri Sri Muralidhara Swamiji
The Lord, through the Maha Mantra will then take care of your family life. What more? All your wishes will be fulfilled, and if you do it regularly over a long time, you can definitely see God face-to-face.