General Book of the Tarot, by A. E. Thierens, , at sacred-texts.com
TRADITION: Enterprise, effort, essay, trade, commerce, discovery, usurpation, daring, temerity and also imprudence, interruption, cessation and 'the end of troubles,' discontinuative.
THEORY: The rather contradictory descriptions of this card's significance are well explained by its zodiacal position: Air on the Third house, which doubles the influence of 'air' and of the mercurial vibrations and effects. This card has the accent of the suit of wands. It must consequently denote: communication, reflection and all that comes from these. This needs little explanation.
CONCLUSION: Communication, instruction, reflexion, message, writing, postage and letters, superficial knowledge,
airiness, passing impressions, discontinuance, interruption, change, perhaps a certain amount of geniality, imprudence also; neglect or want of proper attention; as to 'temerity' I should say only in so far as this means an easy manner of overcoming obstacles, quick insight; effort, essay, trade are correct. Mercury being the God of merchants, and thieves, this card may relate to commerce, theft and loss. "The end of troubles" is indeed well said, because this card gives the key for their solution and shows the way of escape.