But you should avoid the difficult obstacle in the path of Dhyanam, viz, anger, pride, conceit, tendency to discover the faults of others, mischief etc. These operate even sub-consciously, as the currents in the depths of the ocean. The Sadhaka must be vigilant not to lose his temper on even small things, for that will block his progress. He must cultivate love towards all and meekness. Then undesirable habits will fall away from him since anger is the parent of all wrong behaviour.
Anger can turn any into bad ways, any moment, and in any form.
So it should be sublimated first by systematic effort. He must never entertain hatred against them, for that is as bad as hating the 'good'. The 'good' has to be loved and the 'bad' discarded. Remember, the 'bad' should not be hated. It has to be given up, avoided.