There is no end to self-improvement and learning my dear friends. If you want to reach the Heart, unburden yourself from the mind, and just be. That is essentially Sri Ramana’s teaching.
A peaceful mind has the capacity to surrender to its source, the Heart, where the individual consciousness merges with the Universal Being. It is That, which the ancient sages referred to as Sat-Chit-Ananda. Existence, Consciousness, Bliss.
All the various yogas and tantras have only one aim and that is to help the mind attain peace. All genuine spiritual teachings, without exception, are meant for making the mind peaceful.