wishes, he can learn the specific worships and perform them. You needn't do them; they would be a burden for you."
Regarding offerings to be made to Sri Ramakrishna, somebody once said to the Holy Mother, "Mother, I know nothing of the Mantras prescribed for making offerings." At this, the Mother said, "There is no need for so much formality in worship. Everything can be done with the Ishta Mantra."