Can someone attain spiritual knowledge simply through devotion to God, or is something else required?

According to the teachings in Chapter 50, devotion to God is crucial but not sufficient on its own to overcome Maya. The text warns that "without that, the power of Maya is irresistible, even with devotion to God," referring to the removal of ignorance. Devotion serves the vital purpose of cleansing the mind, but one must then actively work to separate knowledge from ignorance, as one would "discard the stones and take the rice." This leads to the knowledge-sacrifice (Jnana-yajna), where the sacrificer offers the ghee of ignorance to the fire of knowledge, burning the difference between the soul and God to manifest non-dual knowledge.