Īśvarapranidhāna "commitment to the Īśvara" is one of five Niyama (ethical observances) in Yoga.
Ishvara (Sanskrit: ईश्वर, romanized: Īśvara) is a concept in Hinduism, with a wide range of meanings that depend on the era and the school of Hinduism. In ancient texts of Hindu philosophy, depending on the context, Ishvara can mean supreme Self, ruler, lord, king, queen or husband. In medieval era Hindu texts, depending on the school of Hinduism, Ishvara means God, Supreme Being, personal God, or special Self.
In Patanjali's Yoga Sutras, the Niyamas are the second limb of the eight limbs of Yoga. Sadhana Pada Verse 32 lists the niyamas as:
Shaucha (शौच)
Santosha (सन्तोष)
Tapas (तपस्)
Svadhyay...