Obstacles appear in meditation somewhat like the obstacles appear while performing any other work. Whatever obstacle comes one must try one’s best to overcome it. One should never stop practice. One should not lose heart. Irregularity in practice, diet, laziness and drowsiness, useless conversation, negative emotions, ego, not finding Guru, lack of faith are some of the problems which a beginner experiences. One should keep moving further without getting distracted because of the obstacles. One should not be discouraged as the journey is very long and can’t be completed overnight.
(Excerpt from 'Japa Meditation - The Easiest Way to Calm the Mind' by Chandrika Shubham. This book is available online at amazon.in)