Meditation is central to all spiritual life, whatever be the religion one follows. Swami Ritajananda, who had wide experience with spiritual seekers both in India and abroad, has very clearly set forth the principles and practice of meditation. The part played by the guru and the mantra are lucidly set forth. Quotations are also given from the Scriptures to explain the various factors involved in meditation.
Think day and night, I am of the essence of that Supreme Existence, Knowledge, Bliss--what fear and anxiety have I? This body, mind, and intellect are all transient, and That which is beyond these is myself. - Swami Vivekananda