As we know today's world is full of provissions.Yet ,human mind is too obssessed and full of instability.The problem is that we forget that life being short and irreverssible.we spend our time saying tomorrow and tomorrow but do not care about the present time.no one has caught tomorrow but dies without attaining it.our demands for living are simple but we collect matterials till we die without enjoing them.in that aspect humans are not clever creatures.They never enjoy life.By enjoy I mean to make your mind as stable and calm possible every minute in any circumstance because life is short and irreverssible.