Do you believe in gravity? Helio-centrism? Pessimism? Ultimately, these are all ideas. Yes, gravity we experience everyday so thats easy, but helio-centrism and pessimism are optional. Helio-centrism because its not obvious like gravity and so it requires analysis, specifically scientific analysis to believe and experience as true. Pessimism? Its easy because freedom to act is a part of the temporal universe and power, profit and control is the current zeitgiest/ethic of the age and that enables the wealthy and those who currently hold power to create, enforce and so control what happens. But pessimism is still a choice…because its an internal/mental decision that you’ve made over and over that now stops you from acting…even before you might start to do so…so its the mental disease of human “civilization” and of modernity/the present point of the current zietgiest…and yet its completely unnecessary because if you consciously choose to make optimism and its fruits of activism, the joys of freedom and participation in evolution, specifically ethical/zietgiestian evolution you align yourself with the power of Wisdom and its ultimate ethic and experience which is the beneficial integration of opposites also known as grace which is loving action.
So make grace/graciousness your conscious mental habit and be ethical, happy, evolutionary and powerful.