Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 35


सर्वासामपि सिद्धीनां हेतु: पतिरहं प्रभु: ।अहं योगस्य साङ्ख्यस्य धर्मस्य ब्रह्मवादिनाम् ॥ ३५ ॥


sarvāsām api siddhīnāṁhetuḥ patir ahaṁ prabhuḥahaṁ yogasya sāṅkhyasyadharmasya brahma-vādinām


My dear Uddhava, I am the cause, the protector and the Lord of all mystic perfections, of the yoga system, of analytic knowledge, of pure activity and of the community of learned Vedic teachers.


According to Śrīla Śrīdhara Svāmī, the word yoga here indicates liberation from material life, and sāṅkhya indicates the means of obtaining liberation. Thus Lord Kṛṣṇa is not merely the Lord of material yoga perfections, but of the highest liberated perfections as well. One can obtain sāṅkhya, or knowledge leading to liberation, by performing pious activities, and Lord Kṛṣṇa is also the cause, protector and Lord of such activities as well as of the learned teachers who instruct ordinary people in the means of piety. In many different ways Lord Kṛṣṇa is the real object of meditation and worship for every living entity. Lord Kṛṣṇa through the expansion of His potencies is everything, and this simple understanding, called Kṛṣṇa consciousness, is the supreme perfection of the yoga system.