Nisargadatta MaharajJust keep in mind the feeling 'I am', merge in it, till your mind and feeling become one. By repeated attempts you will stumble on the right balance of attention and affection and your mind will be firmly established in the thought-feeling 'I am'. Whatever you think, say, or do, this sense of immutable and affectionate being remains as the ever-present background of the mind.

Nisargadatta Maharaj

Jñāna Yoga
Path of Knowledge
(Also called brahmavidyā or jñāna-kāṇḍa, found in last section of Vedas - being the Upaniṣads)

Recommended method of starting with Jñāna Yoga is to refer to the beginning sections of explanatory texts (prakaraṇa granthās) like:

References: