In the beginning, any spiritual arousal is mostly (passion and) light, which is why a person (in such a state) will experience excitement and an increased sense of vitality. The intent (of such an arousal), however, is to bring about actual deed, and to do so on a daily basis - that is to say, to clothe the light (and passion) in vessels (of deeds and actions).
Consequently, it is absolutely necessary that the passion be de-emphasized and the vitality be experienced on a lesser level - because (the emphasis must be on) the actual deed. This (actual deed and) performance is the ultimate intent.
Do not listen to the temptations of the evil inclination which claims that the (loss of spiritual passion, arousal and vitality) should lead a person to a state of depression, G-d forbid. Rather, serve G-d in an orderly and ever-increasing manner, clothing the light (and passion) in many vessels (of actual deed).
...From the collected letters of the Lubavitcher Rebbe (the grand rabbi of Chabad Hassidus), Igros Kodesh Volume 11, p. 182.
Wow, what can one say? It is not uncommon to get a burst of energy, a revelation, a focus on something good. But where is it a week later? A month later? Is it just a memory, or has it been channeled into a permanent improvement in one's service?
Shevua Tov! A good week to all.
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