Aliya Summary: The Tabernacle courtyard was to be 100 cubits (approx. 150 feet) by 50 cubits, and enclosed by mesh linen curtains. The entrance to the courtyard was to be on its eastern side, and the entrance was to be covered by a curtain woven of dyed wools and linen.
So why do we need this Mishkan to begin with, if we’ve been able to communicate and serve G-d without it, both before it existed, and in our days? The answer is that even if one has been davening by heart for a long time, and knows the prayers well, there are still many benefits to getting a beautiful Siddur to use. It gives one a focus, enhances the service of G-d, is physically attractive and spiritually inspiring.