Kundalini is something that's amazingly rare , those who are chosen for this part to take in their life , i.e , struggle and bear much spiritual strife (they might be chosen or they might do it out of greed , or the former could turn into later) are doomed.

Yes there are rewards but very frankly they aren't that grand , super powers are what we all accomplish when are in our teens and bumble into the mystic past.