Bundle Of Energy Meaning

Example : 1883, Landon Taylor, The Battlefield Reviewed, 2nd ed., p. 367:  In truth it may be said he is a bundle of energy, and when he enlists in any good cause, he is a living illustration of St. Paul's motto: "But this one thing I do, forgetting those things which are behind and reaching forth unto those things which are before, I press toward the mark for the prize."1885, Edward Payson Roe, Driven Back to Eden, ch. 18:  To children there are few greater delights than that of building a fire in the woods. . . . Winnie and Bobsey, little bundles of energy that they were, seemed unwearied in feeding the flames.2007, Katherine Tweed, "Kitty Considerations: Buying the Perfect Cat," FOXNews, 20 Sep. (retrieved 15 Apr. 2009):  Anyone looking for a kitten should consider that it is a tiny bundle of energy.2007, Kevin McGran, "'Du-bie, Du-bie' an overnight sensation," Toronto Star (Canada), 5 Apr. (retrieved 15 Apr. 2009):  But Dubielewicz has a bundle of energy and the fans and his teammates feed off it.