The process is known as synchronicity, a term coined by psychologist Carl Jung to describe the temporally coincident occurrence of events. In synchronicity, there is no distinction between inner and outer. The choice of a card is exactly what your higher self already knows. This is what tarot occultists call the conversation with your higher self. The cards always work. It’s not magic—tarot cards are a sacred mirror.
After drawing your cards, revisit your initial question to ensure that it has been addressed properly. A good tarot guide can help you interpret the images you see on the tarot cards, but there’s really no substitute for personal reflection. As with any skill, practice makes perfect, so use this tarot tool often (daily, if possible), or order a set of Astrology Answers Master Deck Tarot Cards and practice at home!