The 19th yahrzeit of the Lubavitcher Rebbe falls in this week (on Tuesday). He was a profound student and teacher of Kabbalah, in addition to his many better known accomplishments. A variety of teachings by him, from him and about him can be found in articles 3 - 7.
Two days later, the 5th of Tammuz is the date the prophet Ezekiel had his famous prophetic vision of the "Divine Chariot," which we read as the Haftorah portion on Shavuot and upon which certain areas of study in Kabbalah are based.