Exertion

exertion : "The sense of exertion is not speedy, aggressive or heavy handed; rather your are relaxed and energized. You are constantly inquisitive, but your awareness is also disciplined, so you accomplish every activity without difficulty, and you inspire those around you to do the same."

noun: exertion; plural noun: exertions

    1.
    physical or mental effort.
    "she was panting with the exertion"
    synonyms: effort, strain, struggle, toil, endeavour, hard work, labour, industry, {blood, sweat, and tears}; More
    pains, assiduity, assiduousness;
    exercise, activity;

    2.
    the application of a force, influence, or quality.
    "the exertion of authority"
    synonyms: use, application, appliance, bringing to bear, exercise, employment, utilization;