This book is available online in English translation and is a reccomended read for any seeker interested in non-dual philosophy. The link is included at the bottom of this post. The following quote is taken from the first chapter of the Tripura Rahasya and shared for your reflection. This excerpt speaks clearly to the Maha Yoga philosophy that surrender and stillness of mind is the simplest method to be released from suffering.
"Well, having gained one purpose, why does man look for another? Therefore, what the man is always after should be esteemed the only real purpose - be it accession of pleasure or removal of pain. There can be neither, so long as the incentive to effort lasts.The feeling of a need to work in order to gain happiness (being the index of misery) is the misery of miseries. How can there be pleasure or removal of pain so long as it continues?"
Tripura Rahasya - http://scriptures.ru/tripura1.htm