I restored my energy at a hot spring over the weekend.
十分に休んで、明日の試合に向けて英気を養おう。
Let's get plenty of rest and build up our strength for tomorrow's match.
great wisdom; excellent disposition; outstanding spirit
A rarer, more literary or evaluative use referring to exceptional intelligence, character, or innate quality rather than physical or mental energy.
古い評伝では、英気がすぐれた才知や気質を指して使われることがある。
In older biographical writing, 英気 is sometimes used to refer to exceptional intellect or character.
I went on a trip and regained my vigor.