What has caused the speaker to employ this ancient gesture?

The speaker employs this ancient gesture as a means of expressing deep emotion, connection, or reverence. It may stem from a desire to convey feelings that Words alone cannot capture, drawing on the historical and cultural significance of the gesture. This act likely serves to bridge the gap between the past and present, invoking a sense of tradition and shared humanity. Ultimately, it reflects the speaker's need to communicate in a manner that resonates on a profound level.