How can I mourn for the Beis Ha’mikdash properly?
How can you mourn for the churban beis ha’mikdash? First of all you have to think about the Beis Ha’mikdash. Most people don’t even think about what the Beis Ha’mikdash meant for Klal Yisroel.
So when you say the last few words in Shemonah Esrei – “Yehi ratzon milfanecha she’yibaneh beis ha’mikdash bi’miheirah vi’yomeinu” – say it with kavanah. At least these words say with feeling. “Vi’sein chelkeinu bi’sorasecha, vi’sham na’avadcha bi’yirah.” So even if you were sleeping through the davening – at least these last few words say with feeling. Show that you understand that it’s a loss. If you don’t even recognize the loss then there’s no use even talking. So every day, when you finish Shemonah Esrei, say these words and think about them.
Also, spend some time thinking about how great of an opportunity we had when the Beis Ha’mikdash existed. You would come to the Beis Ha’mikdash and you would learn yiras Hashem just from being there. “Li’ma’an til’mad li’yirah es Hashem Elokeichem kol ha’yamim”. Merely by coming there and seeing the kohanim ba’avodosam u’le’viyim bi’shiram u’vizimram, you’d become so inspired. You know that Yonah Ha’Navi became a Navi because he was present at the simchas beis ha’sho’eivah in the Beis Ha’mikdash. He was so inspired that the ru’ach ha’kodesh came upon him and he became a navi.
And therefore you must speak to the Ribono Shel Olam. “Ribono Shel Olam, please restore the Beis Ha’mikdash.” I’m not even talking about Moshiach. The Beis Ha’mikdash even without Moshiach is such an opportunity. You can gain so much yiras Hashem from seeing the Beis Ha’mikdash. Of course, it won’t come without Moshiach as well. But we want Hashem to build the Beis Ha’mikdash once again so that we can all come together in the Beis Ha’mikdash and be zoicheh to ru’ach ha’kodesh and to see Hashem. That’s why we are looking forward to the binyan Beis Ha’mikdash.
Little by little, you must work on thinking these thoughts and that’s the way to mourn for the Beis Ha’mikdash. You’ll never mourn for the Beis Ha’mikdash if you don’t feel the loss – if you don’t know what you’re missing. So first you must train yourself to feel how great of an opportunity it was to have the Beis Ha’mikdash – and then you’ll know what it means that we don’t have it. And then you’ll be able to mourn the loss.