We all have to leave this body one day. In fact, sooner than later as we often tend to think. As per Ayurveda sastra and many other sastras, no death comes un-announced. There are sure signs of death known as "marana suchakas" or "marana nimittas" that give us early indication of the impending death.
Cultivation of various arts helps us build a divine culture of positive and blissful engagement of our mind, body, intelligence and ego in the service of lotus feet of Krsna. Lack of cultivation of such arts leads us to animalistic civilization of dry speculation and fruitive mentality. Indeed arts are ingredients for stimulation in Bhakti as Srila Jiva Goswami mentions.
Rain prediction or "Pravarshana nimittas jnana" is an ancient branch of knowledge in Vedic literatures. Billions of dollars are spent by the governments and companjes to send rockets above the ground and send reports on movement of clouds. But we see that the meteorological departments can hardly predict and if they do, the accuracy is of great question.