This is a Mantra to solve problems. This is a mantra which is dedicated to Chandika Devi; this is the name by which the mother goddess Durga is referred to in the Durga Sapthashati also known as the Chandi Path. Hence this is a powerful Shakti mantra so complete and sincere dedication is required.
The siddhi [mastery] over this Mantra is acquired by reciting it 10,000 times. These 10,000 recitations can be completed by reciting a fixed number of Mantras per day [1000 per day will take 10 days to complete].
Then whenever a particular problem arises you have to follow the steps given below.
Have a bath at night and keeping your problem in your mind recite the Mantra 10,000 times. This should be done before an image of the goddess.
Then while going to sleep keep the Mala [the prayer beads] used for counting the Mantra near your pillow. It is said that the goddess will appear in your dream and give a solution to your problem.