A tree needs a good root system to be its strongest, locked into the ground. A lifter is no different. Rooting through the floor is a valuable technique that can instantly lock you in, adding stability and strength. Rooting is done through creating a "short" foot and a "tripod" foot all at once.
The Gait Guys
How To Use Your Foot in Tai Chi - 10000 Victories
What is the Palmar Grasp Reflex?
A Good Foundation Starts With the Feet - DoYou
Holding the Sword
Gripping the Floor in Tai Chi & Qigong
Why do elephants have hooves? - Quora
An Extra-Comforting Sequence for Extra-Anxious Times
Have you ever wondered why your toes curl? - NTFANTFA