Sri Chinmoy: Yes, if you want to open the chakras, then purity is of paramount importance. You can open the doors to these different centres with the key of purity. Each centre can be opened easily, satisfactorily and most effectively if you have the key of purity within you.
Purity is of paramount importance in the spiritual life whether you follow Kundalini Yoga or some other path. Inspiration and aspiration are of utmost necessity in the spiritual life. But inspiration without purity is simply useless; aspiration without purity is simply hopeless. If you have inspiration to enter into a more spiritual life, then this inspiration has to be surcharged with the soul's purity. And if you have aspiration to reach the Highest, then this aspiration has to be surcharged with the soul's purity. If purity is looming large in the seeker's life, then there is nothing either on earth or in Heaven which he cannot acquire.