The best means of spiritual realization is chanting the holy name of the Lord.
Bhagavad Gita 6.11-12,
The Bhagavad-gita can be consulted in all critical times, not only for solace from all kinds of mental agonies, but also for the way out of great entanglements which may embarrass one in some critical hour.
Srimad Bhagavatam 1.15.27,
Unless one reads the Bhagavad-gita in a submissive spirit, it is very difﬁcult to understand Bhagavad-gita, because it is a great mystery.
One has to learn tolerance in the face of dualities such as happiness and distress, or cold and warmth, and by tolerating such dualities become free from anxieties regarding gain and loss.
Bhagavad Gita 2.45,
Bhagavad Gita is also known as Gitopaniṣad. It is the essence of Vedic knowledge and one of the most important Upanisads in Vedic literature.
Bhagavad Gita Introduction,
The mystics derive unlimited transcendental pleasures from the Absolute Truth, and therefore the Supreme Absolute Truth, the Personality of Godhead, is also known as Rama.
Bhagavad Gita 5.22,