The njana yogi (known by other names in other spiritual cultures) seeks unity with divinity by introspection, striving to understand his true nature and his purpose in the world. So the question is, if his focus is introspection, how can he be relevant to the world around him?
Many make the mistake of assuming that a njani necessarily has to retreat into solitude in order to meditate and introspect. In fact, the term njani applies to any person who engages his intellect in seeking to understand the world around him and his role in it. First of all, the study subject of a njani may not even be spirituality. A technological inventor delving into the magic of devices is a njani. A doctor striving to understand the nature of disease and discover healing solutions is a njani. A musical composer immersed in the sublime compositions of nature and replicating that into his work is a njani. Even the religious scholar who studies revealed scriptures in search of the multi-layered message embedded within is a njani. Njana yoga is more widespread than people imagine it to be.