Rabbi Ovadiah Yosef on Rabbi Kook: "He Was an Angel of the Lord of Hosts"

I saw an interesting video at Kikar HaShabbat. In the video Rabbi Yosef's grandson Rabbi Yaakov Sasson tells his grandfather about a book that disparages Rabbi Kook. Rabbi Sasson protested against what was written and wanted to know what his grandfather's opinion was. Here is what Rabbi Ovadiah said:

כן, בוודאי היה אדם גדול. אסור לדבר עליו. הוא היה צדיק יסוד עולם. חכם יהודה צדקה הלכתי אתו פעם למרכז הרב, היה עושה שמחה תודה, הוא היה רוקד. הוא אמר לי (על הריא"ה קוק. י-כ) 'מלאך ה' צבאות', מלאך ה' צבאות, חכם יהודה צדקה לא היה מהמזרחי

Translation:

Certainly he (Rabbi Kook) was a great man. It is forbidden to speak (badly) about him. He was a righteous man, a foundation of the world, Hacham Yehudah Tzadka, I went with him once to Merkaz HaRav, it was Simchat Torah, he would dance. He told me that (Rabbi Kook) is "An angel of the Lord of Hosts". An angel of the Lord of Hosts. Hacham Yehudah was not from the Mizrachi .

Many people commented on the clip. Some of them mentioned that there is nothing new in the clip, as Rabbi Kook is mentioned in all eleven volumes of Yabi'a Omer (Rabbi Ovadiah Yosef's responsa), where is is referred to as Mara D'Ar'a D'Yisrael, the master of the land of Israel.

Update: Here's the clip: