Acharya Prashant defines spirituality as the rigorous search for truth, which is that which remains unchanging and beyond time. He clarifies that spirituality is distinct from religious customs, sects, or cults. It arises because man perceives a world in constant flux, where everything eventually turns out to be false or ephemeral. Since man's identity is derived from this changing world, his sense of self is also unstable. This transitory nature of existence creates a deep discontentment, leading man to seek a stability that does not fall apart. Spirituality is the movement toward that which is beyond the vagaries of time. Acharya Prashant describes spirituality as being deeply scientific because it involves a close and honest observation of the world and its processes. However, it goes beyond science by examining the relationship between the world and the self. While science relies on the fundamental superstition that the senses and intellect provide the ultimate truth, spirituality questions the very instruments of perception. It acknowledges that the senses and intellect are limited and may not be capable of detecting the absolute truth. Thus, spirituality lacks the arrogance of science and involves a 'brutally honest' search that transcends intellectual boundaries. The two core aspects of spirituality are attention and faith. Attention involves a scientific understanding of the world's movements and sufferings, while faith is the conviction that there is something beyond worldly influences. Acharya Prashant emphasizes that spirituality is not merely a belief system or a way of thinking, but a deep immersion into truth that involves one's entire being. It is an 'unreasonable sureness' that a spiritual person lives and breathes, moving beyond the province of the mind to taste the reality of the beyond.