Patanjali Yoga Sutra 1.29

Sanskrit Sutra

ततः प्रत्यक्चेतनाधिगमोऽप्यन्तरायाभावश्च॥२९॥

Swami Vivekananda's translation

From that is gained (the knowledge of) introspection, and the destruction of obstacles.

Chapter link: Yoga Sutra Chapter 1