The Lubavitcher Rebbe said the following maamar in 1977, תשל”ח on Motzei Shabbos, Parshas Noach. following a serious heart attack at the end of Simchas Torah that year. The Doctors told the Rebbe he could speak for a few minutes which ended in a hour long maamar to the chassidim spoken from his room into 770 via a PA & Microphone.
The following its my own translation and explanation of the maamar.
מַיִם רַבִּים לֹא יוּכְלוּ לְכַבּוֹת אֶת הָאַהֲבָה וּנְהָרוֹת לֹא יִשְׁטְפוּהָ
The maamar opens with a quote from Shir HaShirim 8:7, ” Many waters are not able to extinguish the love, and rivers are not able to wash it away. The Chabad Rebbeim explain that the Mayim Rabim represent Tirdas HaParnasah (Financial Concerns), and overwhelming thoughts of this world. nevertheless these are not able to extinguish the love that is hidden in the soul of every Jew, as the rivers are not able to wash this away. Now, these thought and concerns increase like a great river that does not cease, like a river that is constantly raging and increasing in power, nevertheless, it cannot wash away the love, nor extinguish it.
Now the term Tirdas HaParnasah (Financial Concerns), must be explained, as it is written, “You will eat from the work of your hands.” The verse says from the work of your hands specifically, and not from your mind and heart. Yet, we find that the sustenance gained in this world is achieved through the garment of nature, and needs to be done through the garment of sustenance from above, like it is written,” You will be blessed by Hashem your G-d, in all that you do.