This Beej Mantra is also the Beej or Root Mantra of the Vishuddhi Chakra, which is the Fifth of Seven Chakras of the Kundalini Shakti.
The Vishuddhi Chakra is also called the Throat Chakra and is connected to the Akash Tatwa. It also controls among other things the functions of speech and hearing and the activation of this Chakra gives Vacha Shakti or the Power of Making the Spoken Word Come True.
It also makes the voice of the practitioner hypnotic and magnetic thus enabling him to enchant and attract everyone with his voice.

Apart from this, the Beej Mantra attracts every kind of wealth and prosperity, there is an increase in the mental powers of the practitioner and his mind becomes fresh and vibrant, the personality of the practitioner becomes desirable and beautiful and he finds peace and happiness in life.
Thus, we can see that there are immense benefits of chanting this Beej Mantra, which also makes the practitioner Vishnulokagami or a resident of Vishnu Sagar; the Abode of Lord Vishnu after death.
How to Master this Beej Mantra:
1] Chanting the Mantra 20,000 times gives Siddhi over the Mantra.
2] As it is a standalone Beej Mantra there are no specific rules for chanting the Mantra. However, Vachik or Verbal Chanting is recommended.
3] The Mantra can be chanted as many times during the day or night; even while sitting, standing, walking, or working.
मंत्र
हं हं हं हं हं हं ||
Mantra
Ham Ham Ham Ham Ham Ham ||
4] If the practitioner is well-versed with Kundalini Meditation, he can chant the Mantra by sitting down with his spine erect and concentrating upon the Vishuddhi Chakra.
5] The practitioner can continue chanting the Mantra even after completing the 20,000 Mantra Chants.
The Hindi language video of this Mantra can be seen on our YouTube Channel- Apar Dhan-Daulat Paa Kar Vishnu Lok Jane Ka Chamatkari Beej Mantra
Note- See all kinds of Mantras, Yantras, and Prayers of Lord Vishnu in the section on Mantras and Tantra of Bhagwan Shri Vishnu
Comments
Does this need diksha or to be checked on the akadama and others chakra?
in how many days do we have to complete 20,000 mantras referred by you?