Acharya Prashant explains that while the absolute truth is unthinkable and unreachable for the human mind, spiritual practice involves rejecting the falseness one encounters in daily life. He uses the analogy of a person in a cold, dark four-story house who cannot reach the sun but can climb to the top floor to receive its warmth. This ascent represents 'sadhana', which does not take one to the infinite but to one's highest relative possibilities. He emphasizes that the Lord's grace is unconditional, yet one must do the work of 'climbing' to the highest level of their own capacity to receive it.