Shri Ashok Kumar Rai started his career in 1969 as a Mechanical Engineer and worked in various organisations like Control Switch Gear Co., Hyderabad Asbestos, NBCC, and BHEL. Since 1982, Shri Rai has been working with NTPC. He was also on deputation to NASL (Joint venture of NTPC& Alsthom) from 2000 to 2001. Since 2002, he has been working as Manager, APDP-R&M, NTPC. Shri Rai has travelled to many countries.During his visit to France he got an opportunity to visit 240 MW Lawrance Tidal Power Station installed near English Channel owned by EDF, France. Since his childhood, he had been fascinated with aviation mechanics and wanted to become a Pilot.Though fortune did not smile on him still he enthusiastically pursued his love and passion for aviation and kept himself updated with latest advanced techniques in aviation mechanics. He is a voracious reader. His passion for reading made him leap all bounds and even explore into astrology, human behaviour, stress management, art of happiness & healthy living. He shared his views in the form of presentation in different forums like NTPC, BSNL, Escorts Heart Institute, Tihar Jail and Police Training Centre. He has also completed Jyotish Visharad from Indian Council of Astrological Science, Regd. Chennai. He has been involved in social activities by ameliorating the condition of destitutes and rendering financial assistance to the needy children in the form of merit scholarships. Through this endeavour, he wants to throw light on all the relevant aspects concerning stress, strain, depression, sleep, meditation and yoga. This book will serve as a guide to the inquisitive readers who are perplexed with mood disorder/stress related illness.