A devotee sees only the Lord in all names and forms. - Sivananda Saraswati

Anxiety and worry are the effects of fear. Some sort of fear gets buried in the subconscious mind. So man worries himself. There is continued strain and tension in the mind.

Fear is illusory; it cannot live. Courage is eternal, it will not die. Perils, calamities, dangers are the certain lot of every man who is a denizen of this world. Therefore, O Man! Fortify your mind with courage and patience. Fortitude, courage, presence of mind will sustain you through all dangers.

Fear is of two kinds, viz., natural or rational fear, when there is a threatening situation to endanger life; and unnatural or unusual fear which has no objective reality.