Jnana yoga emphasizes the search for truth. To pursue this spiritual path successfully requires strong intellect, openness and courage - qualities which many consider difficult in practice but which are necessary. Though Jnana yoga may appear more challenging at first glance; its difficulty stems more from its duration - taking years of effort and patience in order to cultivate spiritual insight can often prove fruitful but can become challenging over time.
Subheccha is the initial stage in Jnana Yoga practice; an intense desire to uncover truth that prompts passionate study of Sanskrit texts and an effort toward non-attraction/indifference of sensory objects. Once this stage has been reached, core practices of Jnana Yoga such as Sravana or "hearing," Manana or "reflection," and Nididhyasana or meditation may begin; eventually leading towards atma-sakshatkara or direct realization.
Note that the four pillars of jnana yoga serve as milestones on the path towards liberation, and any yogi should always make progress through them in an orderly fashion. Otherwise, they could become disoriented on their journey toward self-realization and lose track of where they stand on this journey.
As an integral component of overall wellness, jnana yoga not only assists mentally and spiritually but can provide physical benefits as well. When practicing regular meditation, your blood circulation improves which in turn can prevent diseases of kidneys, heart and liver. Furthermore, its relaxing effects reduce stress levels greatly improving overall health.