The Grace is something that pushes you towards the goal to be attained. Do not try to judge it by your mind, you will not get anywhere, because it is something formidable which is not explained through human words or feelings. When the Grace acts, the result may or may not be pleasant—it takes no account of any human value, it may even be a catastrophe from the ordinary and superficial point of view. But it is always the best for the individual. It is a blow that the Divine sends so that progress may be made by leaps and bounds. The Grace is that which makes you march swiftly towards the realisation.
Ref: Words of The Mother – II