Viniyoga
अस्यश्रीगुरुगीतास्तोत्रमंत्रस्य ॥परमशिवऋषिः ॥विराट्छंदः ॥श्रीगुरुपरमात्मादेवता ॥श्रीगुरुप्रसादसिद्ध्यर्थेजपेविनियोगः ॥
In plain words
Of this Guru Gītā, a stotra and a mantra: Paramaśiva is the ṛṣi, virāṭ is the metre, Śrī Guru the supreme self is the deity. Its application in japa is for the attainment of the grace of Śrī Guru.