“As we discussed earlier, the transformation of mind and heart does not happen overnight but through a gradual process. Although it is true that in some cases instantaneous spiritual experiences may be possible, they are rather unreliable and somewhat shorlived. The problem is that when sudden experiences occur, like bolts of lightning, the individual may feel profoundly moved and inspired, but if the experiences are not grounded in discipline and sustained effort they are very unpredictable, and their transformative impact will be rather limited. By contrast, a genuine transformation that results from sustained concerted effort is long-lasting because it has a firm foundation. This is why long-term spiritual transformation can really only come about through a gradual process of training and discipline.”
elaborate?