Complex sentence: The Maharishi wrote a paper on Brahmananda Sarawsati, who he referred to as Guru Dev (greatest teacher), that was included in the 1955 book "Beacon Light of the Himalayas".
Split into simpler sentences: The Maharishi wrote a paper on Brahmananda Sarawsati, who he referred to as Guru Dev (greatest teacher). That paper was included in the 1955 book "Beacon Light of the Himalayas".