Recently, at an alumni wedding, the father showed me the letter he received from the Lubavitcher Rebbe for his engagement in 1988. He was especially enthusiastic 
about “Betach” the first word of the letter. A little while later, his wife came over, and asked if I saw the “Betach” letter. “Betach” is Hebrew for certainly or of course!
The letter freely translates to: “Certainly both of you have resolved to establish your home on the foundations of Torah and Mitzvot. May the engagement be in a good and auspicious time. I will mention this at the Ohel.”
This letter was dated 1988, they showed me this letter in 2015. Their enthusiasm and inspiration had not dimmed in 27 years. To them, the word “Betach” was an assurance, a promise, an obvious certainty that their home would be built on Jewish values, on Torah and Mitzvot. It evoked in them staunch confidence and certitude, deeply rooted and unwavering dedication.
Now and then in the Freidiker Rebbe’s writings he lovingly describes an old Chassid who heard a blessing or a teaching years earlier and lived with that vividly for decades to come, as if it was heard yesterday. This couple are such people. This word “Betach!” is engraved in their hearts, and they turn to it often for encouragement, guidance and uplift.
—–
This is not just about marriage. We can all use “Betach!” in our lives. Today the world quivers with uncertainty. Few things can be taken for granted or relied upon with certainty. We can all use a rock of faith, an anchor of hope.
For young Jewish students entering the college experience, it’s also important to remember “Betach” in a different way. Today’s America respects differences, as long as you stick to it, and are proud of it. If keeping Kosher is important to you, and you are consistent in whatever level you keep, people will respect that. If Shabbos is something you observe, people will respect that. They may not agree with every position, they may not do the same themselves, but they respect consistency, dedication and resolve. A “Betach!” attitude goes a long way in remaining true to your values and observances in an environment that is totally different or indifferent.