The childhood perception of multiple observations of a visible plant event turning into an academic pursuit has been a miraculous twist in my life, which made all the difference between what I am today and what I might have been in the past. The early morning sunlight reflected by diamond-like water drops oozing profusely from rice plants growing all around my house, officially provided to my father, Professor Tarak Nath Singh, by Narendra Deva University of Agriculture & Technology Crop Research Centre, Faizabad in India where I was born, raised, and educated, triggered my mind during school days and aroused curiosity and anxiety regarding this fascinating and intriguing phenomenon of plant oozing, that is, guttation. Driven by the desire to understand guttation, I had then decided to work on these so-called teardrops of plants to unravel the internals and externals of how, when, why, and what spectra of this phenomenon, setting aside the prospect of choosing medical or engineering streams of education for lucrative job opportunities. The curiosity that was aroused during my school days culminated in investigations on guttation, constituting a chapter on it in my doctoral thesis submitted to Dr R. M. L. Avadh University, Faizabad, UP, India. With this began the exploratory journey on guttation that has seen no end till date, resulting in several invited publications on this subject authored by me. My guttation journey was further boosted by organizing and hosting the ‘First World Congress on Guttation and Root Pressure’ from December 2, 2015 to December 5, 2015 at the College of Agriculture & Rural Transformation of the University of Gondar, Ethiopia, which was attended by overseas guttation specialists from the United States, Germany, the Netherlands, Israel, and Hong Kong, in addition to those from within Ethopia. As a matter of fact, guttation has never been in the mainstream of research because of the prevalent belief and opinion that it is of no use to plants and people, which, of course, was proved wrong as you will witness when you harbor through different chapters of this book.