Śailādi said: They know the following as mental service:—viz., pondering upon the attributes of Śiva such as “He is truthful” “He is all-pervasive” etc., and the thought about his assumption of forms.[6] Bold self-possessed persons know that the repetition of Praṇava, etc. is the verbal service. The Prāṇāyāma, etc. are mentioned by good men as the physical service. Thus is the bondage of all embodied beings by means of the bonds of merit and sin. Lord Śiva, Parameśvara alone is the person who releases them. The twenty-four principles are mentioned as the activities and attributes of Māyā. They are called sensual objects. Through the bondage they bind the individual soul. The embodied souls who are tied by them are liberated only through devotion to Śiva.