My religion doesn't teach me that life is solely undesirable. My religion teaches me that there are aspects of life that are desirable and there are aspects of life that are undesirable. My religion says that an appreciation of the aspects of life that are undesirable is required to understand it. Those who focus simply on the aspects of life that are desirable will not understand it, just like you. I hope this corrects your misunderstanding, but I don't hold much hope.