How do we know that God's purpose is to conform us to Christ's image?

From a Reformed perspective, God predestines His children for transformation into Christ's likeness, which is articulated in Romans 8:29, affirming that those He foreknew were predestined to be conformed to the image of His Son. This doctrinal truth highlights that while God cares for our welfare and happiness, His chief aim is our spiritual growth and maturity in Christ. This transformative purpose prevails over our immediate circumstances and is evident through the work of the Holy Spirit in our lives, guiding us through trials and challenges toward conformity to Christ.