yogena cittasya padenaa vacam
To purify the mind, the consciousness (citta), Patanjali gave the science of yoga (yogena) to us. To purify our use of words (pada) and speech (vaca), he gave commentary on grammar to us, so that our use of words and way of speaking is clarified, distinct and pure.
malam sarirasya ca vaidyakena
To remove the impurities (malam) of the body (sairira), he gave us the science of medicine (vaidyakena).
yopakarottam pravaram muninam
Let me go near the one who has given these things to us.
patanjalim pranjalir anato'smi
Let me bow down (anato'smi) my head with my folded hands (pranjalir) to Lord Patanjali.
[In order to meditate on the Patanjali's work we are then given his form]
From the hand up to the head he has the shape (karam) of a human (purusa).
sankha cakarasi dharinam
In his hand he is holding the conch (sankha) and the dosc (cakra).
sahasra sirasam svetam
On top of his head (sirsam) [because he is the incarnation of Adishesha, the greatest cobra] he has a thousand (sahasra) bright/white (svetam) hoods of the cobra.
I bow down to that Patanjali.