The Ramban Synagogue, which was founded by the Ramban in 1267 and is the second oldest active synagogue in the Old City of Jerusalem. If you’re in Eretz Yisroel, try to daven there. The Ramban in his Torah Commentary at the end of Parsha Bo explains the purpose of Shuls. Here’s the Ramban:
“When one does a simple mitzvah like mezuzah and thinks about its importance, he has already acknowledged G-d’s creation of the world, G-d’s knowledge and supervision of the world’s affairs, the truth of prophecy and all the foundations of Torah. In addition he has acknowledged G-d’s kindness towards those that perform His will, for He took us from bondage to freedom in great honor in the merit of our forefathers.
That is why Chazal say, be careful in performing a minor commandment as a major one, for all of them are major and beloved since through them a person is constantly acknowledging his G-d. For the objective of all the commandments is that we should believe in G-d and acknowledge to Him that He created us.
In fact this is the purpose of creation itself, for we have no other explanation of creation. And G-d has no desire, except that man should know and acknowledge the G-d that created him. And the purpose of raising our voices in prayer and the purpose of Shuls and the merit of communal prayer is that people should have a place where they can gather and acknowledge that G-d created them and caused them to be and they can publicize this and declare before Him, “We are your creations”.
A powerful statement. When we gather and daven in Shul we’re directly fulfilling the purpose of creation. Certainly puts things in a clarifying perspective.