Bhakti is the development of faith and jnana

Bhakti is the development of faith and jnana is the development of bhakti. Faith leads to the final experience. Whatever a person strongly believes in, that he experiences and that he becomes. Faith is the fundamental necessity for spiritual sadhana. Not an iota of progress is ever possible on the path of spirituality without faith. No faith, no devotion. No faith, no jnana. Faith is one of the important elements in the shad-sampat or six-fold virtues, one of the four means of salvation. “To others this samadhi comes through faith, energy, memory, concentration and discrimination of the real.” He has placed faith at the very beginning of this verse. If a person has faith, then energy and memory come by themselves. "Shraddha bhakti dhyana yogadvai hi, “Know Him by faith, devotion and meditation.” Faith comes first. Without faith you cannot practise either concentration or meditation. ~ Patanjali Maharishi.
Har Har Mahadev !