Enlightenment (spiritual) yoga" and "karma yoga" are subsidiary. In bhakti yoga, practice centers on the worship God in any way and in any form, like Krishna or Ayyappa. Adi Shankara himself was a proponent of devotional worship or "Bhakti". But Adi Shankara taught that while Vedic sacrifices, "puja" and devotional worship can lead one in the direction of "jnana" (true knowledge), they cannot lead one directly to "moksha". At best, they can serve as means to obtain moksha via shukla gati. Karma yoga is the way of doing our duties, in disregard of personal gains or losses. According to Sri Swami Sivananda,
Brihad Bhagavatamrita khaëòa – Ascertaining the Glories of Çré Goloka. In the first part of "Brihad-bhagavatamrita" Sanatana Goswami has described a conversation between Parikshit and his mother, Uttara. It took place after Parikshit heard the "Bhagavata Purana" from Śuka. Uttara asked her son to explain the essence of "Bhagavata Purana", and Parikshit revealed to her the stages of confidential Bhakti. He told her a story about how Narada was looking for greatest devotee of Krishna. The Great Rishi began his search with devotees of Krishna whose Bhakti was mixed with karma and jnana (Brahma and Shiva), then went up to Shanta-rasa (Prahlada),