Mishnah Berurah — משנה ברורה

With the טלית - This covering humbles the heart of man and brings one to fear of Heaven. See the Taz, who opines that it's proper to not remove one's kippah from one's head during prayer, even though one's head is also covered with the טלית. The Bach writes that one must have one's טלית on one's head from the beginning of prayers until the end. At the least, one should stand wrapped for at least the time that it takes to walk four cubits. It's written in the Kavanos of the Arizal: He (i.e. the Arizal) would cover the טלית over the תפילין של ראש (head tefillin). See the end of Siman 27, that nevertheless, it should not be completely covered. At the time of wrapping, he [should] cover his head with the טלית until it (i.e. the front edge) reaches his mouth, and then he sends all four ציצית to the left side (i.e. behind him over his left shoulder) [and pause] for the time it takes to walk four cubits. And afterwards he undoes the wrapping until the תפילין של ראש appears slightly, as we mentioned previously. And then he should arrange each one of the ציצית in its place, as is mentioned in Se'if 4. And this is the wrapping that one fulfills his obligation according to everyone. And not like the custom of some people, that drape the טלית over themselves until their head is at the midpoint of the length of the טלית and then wrap it... for this is not called "wrapping". It is implied in the גמרא that a man should not cover his head with the טלית, even if he's a תלמיד חכם.