Lyrics:
हौं नमः haum namah'
Meaning:
The seed sound Haum is connected with Shiva.
It represents fierce protection, inner strength, and the power to burn away negativity.
Namah means I bow with respect or I surrender.
So the combined sense is: I bow to the protective power of Shiva, the remover of fear and negativity.
Benefits:
No. Initiation is required only if you want to do mantra sadhana, not for listening. You just have to listen to the mantras we provide to get benefited.