Bhagavad Gita 6.13

समं कायशिरोग्रीवं धारयन्नचलं स्थिरः।संप्रेक्ष्य नासिकाग्रं स्वं दिशश्चानवलोकयन्॥

samaṃ kāyaśirogrīvaṃ dhārayannacalaṃ sthiraḥ |saṃprekṣya nāsikāgraṃ svaṃ diśaścānavalokayan ||

Let him firmly hold his body, head, and neck erect and still, gazing at the tip of his nose without looking around.

Let him hold his body, head, and neck erect, motionless and steady; let him look fixedly at the tip of his nose, turning neither to the right nor to the left.

Our plain-language meaning of this verse is waiting for scholar review.