K.P. Yohannan emphasizes that faith is defined in Hebrews 11:1 as the substance of things hoped for and the evidence of things not seen. He explains that faith serves as the building blocks of God's promises, allowing believers to trust in the invisible realities of God's Word. Yohannan illustrates that true faith acknowledges the challenges we face while choosing to believe in God's power and faithfulness, even when His ways seem illogical. He encourages believers to adopt a childlike trust in God, highlighting that faith is not about understanding every detail but about relying on God's character and promises. Ultimately, faith is the means through which we experience God's miraculous work in our lives.