my Bujinkan video exploring 風の型 Fu No Kata. We began with 初心五型 Shoshin Gokei. Then we moved quickly to 五行の型 gogyō no kata.
Your gedan uke opens up a vacuum. Then the air of your strike rushes in to fill it. Hatsumi Sensei enters with his whole body, the elbow connected to his hip.
I showed the shiho variations. Here as a breeze from the east, your boshi serves like a 風見 kazami or weather vane directing the attack. If he tries to evade the wind of your strike, it envelops him and carries him along. This type of directional shift is really strong during the 裏技 ura waza.