How to attain mystic perfection

SRIMAD BHAGAVATAM 11.15.19-20:

That purified living entity who fixes his mind on the extraordinary sound vibrations occurring within Me as the personified sky and total life air is then able to perceive within the sky the speaking of all living entities.

Commentary by Srila Visvanatha Cakravarti Thakura:

By meditating on the transcendental sound vibration, omkara, one can achieve the mystic perfection of being able to hear the words of the living entities that are spread in the sky.

Purport by Srila Bhaktisiddhanta Sarasvati Thakura:

In the ekayana worship of the paramahamsas, chanting the Holy Name of the Lord is considered to be the most important activity. It is the duty of all living entities to receive the transcendental sound vibration of the Absolute Truth. When all words are aimed at glorifying the Supreme Lord, one becomes able to hear the speech originating from liberated living entities far beyond the material universe. Liberated souls can visualize reality simply by the reception of the transcendental sound vibration.

Merging one's sight into the sun planet and then the sun planet into one's eyes, one should meditate on Me as existing within the combination of sun and vision; thus one acquires the power to see any distant thing.

Commentary by Srila Visvanatha Cakravarta Thakura:

There is an intimate relationship between the sun and the process of vision. The two are inseparable and are pervaded by the presence of the Supreme Lord in His all-pervading feature as the Supersoul. Here the process of attaining the mystic perfection that enables one to see objects even though very distant is being described.

Purport by Srila Bhaktisiddhanta Sarasvati Thakura:

While casting one’s glance upon Lord Narayana as He is situated within the sun globe, if, in reciprocation, one receives the auspicious glance of the Lord, one will see through purified vision that the objects of this world are meant for the Lord’s enjoyment, and not for one’s personal sense gratification. Without receiving the Lord’s glance, one will see the world as either meant for one’s enjoyment, or as an object of dry renunciation.