The first instruction underwater is also the last: stop fighting. Buoyancy is not an opponent; it is a condition, like gravity on land, and it responds to finesse rather than force. Add air and rise. Release it and settle.
Every attempt to muscle through water costs twice — once in effort, once in noise — and the water reports both. The shark dive compresses it: the sharks do not overpower the water, they agree with it.
Controlled surrender is not passivity. It is precision worn lightly — effort applied exactly where it changes something, withheld everywhere else. Fight the conditions and they harden. Work with them and they carry you.