تم کو جو ہمیں ملنے کی فرصت نہیں ملتی
لگتا ہے کہ اب ہم سے طبیعت نہیں ملتی
بے چین جو رہتا ہوں تو صد شکر ہے یارو!
درویش کو دنیا میں تو راحت نہیں ملتی
اور ملنا کسی کا بھی ہے دشوار ہی تب تک
جب تک کہ ضرورت سے ضرورت نہیں ملتی
تب تک نہ غمِ ہجر کا کچھ ہو گا مداوا
جب تک کہ ہمیں آپ کی قربت نہیں ملتی
تائب جی تمنائوں کو پڑتا ہے مٹانا
یوں بار گہِ عشق میں عزت نہیں ملتی
Allah has created human being and gave him the power of intellectual understandings. To utilize and make positive use of this Allah sent Holy books for guidance. While, keeping the sequence of these books and the historical evolution of human mind, one can easily recognize the symmetrical progress in both. Human starts living in caves and through his intelligence created homes to live, tools to gain meal, and so on, till todays growth. As far as, evolution of Holy books is considered, Scriptures were revealed in different portions as human at that stage couldn’t write or store on pages or another source. Old Testament was revealed earlier. It is combination of Torah, Psalms and other books. In the context of Islam, Torah was the first book revealed on Hazrat Mosa, in which commandments were given as per the level of Bani Israel. Afterwards, Psalms, containing poetic way inspires Bani Israel after the Torah and the Bible Last Holy book in the generation of Israel, comprises of observational and experiential way, as required in that era. Holy Quran, compiled and final version of all the past version, is summary and elemental book. In which, descriptive, observational, experiential, poetic, logical, argumentative and comprehensive technique are present. These all shows, ultimate intellectual growth of human is being address in Holy Quran. As Human is now intellectually at its peak so the teaching and techniques used are at highest level of literature, showing the step by step evolution and association of Holy books with Human being.
After having reviewed, all the existing deterministic and stoxhastic models, being used currently, all over the world, to generate data for non conventional energy systems, a need was felt for appropriate mathematical models to generate solar radiation and wind speed for realistic operating conditions for energy systems, by mathematical equations characterizing the deterministic and the stochastic components of the long term measured records, specially from the point of view of our country, Pakistan.