I had goose bumps From this youtube description, the lines means this:
Tse Kus Be Kus Teli Wan su Kus
Who are you and who am I then tell us who is he the creator that permeates through both you and I
Moh Batuk Logum Deg
Each day I feed my senses/body with the food of worldly attachment and material love (Moh = attachment)
Shwas Khich Khich Wang-mayam
For when the breath that I take in reaches the point of complete purification (Shwas = Breath)
Bhruman daras Poyun chokum
It feels like my mind is bathing in the water of divine love (Bhruman = nerve center in the human brain, poyun = water)
Tekis Takya bane Tyuk
Then I know I am like that sandal wood which is pasted for divine fragrance symbolic of universal divinity. I realize that I am, indeed, divine (Tyuk = Tika applied on the forehead)
I guess this is the reason our cultural and traditional songs have lasted over centuries, they evoke this emotion in every generation they are passed on to.