In His Bhagavad Gita, Lord Krishna gives His trancendental analysis of the workings of karma, jnana , astanga, and Bhakti yoga . When Bhakti is added, everything becomes blissful and knowledgeable . In other words, everything can be understood in the right light, and the trancendental connections between all yoga systems become apparent. Krishna says one who knows the path jnana and karma leads to the same result is knowledgeable . This is because if one acts dutifully in karmic duties as given in theological cultures, connections with Divinity naturally awaken . Its Divinity Himself, who brings forth within the Vedas the process for gainfully living that includes systematic knowledge and detachment. Karma, when dutifully carried out, leads inevitably to degrees of karma yoga as knowledge of God and sacrifice will be naturally increased by good pious activities. Karma yoga in its beginnings leads to increased levels of Bhakti in the association and guidance of saints and godly persons , and such association naturally leads to increased levels of jnana , I.e. knowing the purposes of the Vedas and knowing how to please Divinity as such, knowing who Krishna is and what Krishna’s purposes are .
Those who , because of previous lives or tendencies for jnana or knowledge, can in the association of saints become more aware of the real purposes of knowledge which are that all kinds of thinking processes and intellectualism should lead to actions, or karma yoga , and in the case of high levels of jnana ,its called niskama karma yoga .Karma yoga with greater knowledge and greater awareness of Divinity. In both cases, karma or jnana yoga leads to pure Bhakti, without Bhakti karma and jnana yoga will not progress far or fast , but rather in slow increments .The addition of Bhakti leads to increased hearing and chanting about Krishna and increased levels of pure meditations centred exclusively on Radha Krishna and all the activities of Their friends and family members , this can be termed as pure Astanga yoga . The windows to the spiritual world are there within the litratures of the Goswami’s who Sri Caitanya Mahāprabhu personally taught . Everything is made clear within the litratures of the Goswami’s and by the param para acaryas who follow the Goswami’s. Sadhu sanga and sastra sanga, along with service with devotion, is the clear path laid out , the chanting of the names of God are the means to understand everything .