Who am I

who am I.
Will this life of mine end one day, will I lose some of the pleasures of life and some of the pains that have caused me, will my name end one day, will this world end? If this world will end, then what is the purpose of my world? Why was I born? I have sent
This sky, this earth, this sea, this mountain, this river, this wind, this change of night and day, this change of cold and summer season, this rain, then the birth of vegetables and fruits in different forms from the dead earth