Try chanting Hare Krishna maha mantra as you come back. In my experience the trascendental sound vibration that it creates is soooo powerful that it gives you A LOT to think 🤔 about. It definitely helps if you practice it before so you’re tongue rolls out with the very vibration of the medicine.
Yes, the Maha mantra is quite wonderful, indeed! It has a hypnotic quality to it. One of the highest master souls of the 20th century, Sri Sri Sitaramdas Omkarnath Maharaj, taught this mantra to his pupils. He was so high that it's a miracle that he maintained a physical body for such a long lifetime. My brother and I used this mantra the entire summer of 1978 and it yields a very deep interconnection with Divine love.
Like all mantras, however, it can lose it's form entirely, when concentration becomes deep enough, whereby it melts into the infinite formless cause of all causation, like snowflakes vanishing upon a flowing river. I prefer to listen for the enigmatic tone of the AUM vibration. Even seed mantras like: Om Ah Hum, So Hum, Hong Sa, Om Namah Shivaya and Om Mani Padme Hum... themselves, entirely dissolve into the Infinite field of the AUM vibration. Going deeper still, all sound is silenced within an emptiness to vast that even conscious-awareness loses it's reference.
I clearly recall having a discussion with two followers of the Hare Krishna movement, way back in 1979, when I first lived in Boulder, Colorado. One of the zealots was more forceful and enthusiastic. He emphatically insisted that only by chanting the Maha mantra, could the human soul become liberated, living within this current Kali Yuga. He acknowledged that even the Maha mantra emerges from the OM, but proclaimed that only advanced yogis are pure enough to meditate upon the source of all sounds. I prahnamed him and smiled to myself. Without humility, any seeker is only further entrenched in illusion, so I kept my opinion to myself. Should I do so here and now? Who can say without some degree of uncertainty?
But in all sincerity, I still feel that the primal humming of the Omkara is the most direct path to moving beyond duality, with it's ringing overtone, "The Carrier Wave". Ultimately, an absolute emptiness and eternal quietude is found within the epicenter of the rumbling force of the Roaring Silence... and that is our truest nature (as Brahman). Within the nondual center of all passing phenomena exists such an immeasurable expanse of infinite stillness, that subjectivity is wholly erased. That being said, what a lovely and rhythmic chant the Maha mantra is!!!