Hundreds of whys

I miss everything. That I used to have. People often tell others to cherish what they have, so that they won't feel regret as things are gone. But knowing to appreciate doesn't mean things won't change. The world intended to control people, nature and many more. Yet they've failed to control the time. We can't travel as fast as the speed of light. The Earth continues to spin, time passes, people changes -- nothing lasts. It might come back again, in a millennium I guess? Maybe. Who knows. No one could survive that long. No matter how much love and gratitude you've poured in, that person will still leave you someday. At least you won't be sorry to yourself? This just seems to be a pathetic way of self consolation to me.

Life's unfair, I know. Is it because the Earth is tilted at 23.4°? Or is it because our heart's located at the lefter part of the body?