I think too often we give ourselves (our minds, consciences, wills) to some cause, conviction, or belief too freely, and without much consideration. I look back on some of my deeply held convictions (at the time) with shame at my ignorance, and easily led heart. As the years have passed, putting some perspective between me and the long-ago held beliefs, I now understand the proverb which reads: "guard your heart above all else, for out of it flows the well-spring of life."
And even though I am neither very old, or very wise, I do hope that I have learned not to attach myself to any cause or belief, too quickly and without any though, or prayer.
I am thankful that God gives us His word, which helps me to discern between things I might like to do, and things I need to do. Discernment is a honed skill, and using the Word as our guide helps us become sharp.
For the Word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and spirit, and of joints and marrow, and is a discerner of the thoughts and intents of the heart. And there is no creature hidden from His sight, but all things are naked and open to the eyes of Him to whom we must give account.