It is not because there is something bad in you that blows fall on you,—blows fall on all human beings because they are full of desire for things that cannot last and they lose them or, even if they get, it brings disappointment and cannot satisfy them. To turn to the Divine is the only truth in life.
As for the blows, well, are they always given by the Yoga—is it not sometimes the sadhak of the Yoga who gives blows to himself?
Ref: Letters on Yoga – IV