"Home is a place."
는/은 are special letters that you add after your word to show that it is the main word here(?),like :I(나/저 +는/은 ) eat apple(사과+ 을) (don't really remember) So,we use 는&를 when it ends on letters like d,t,b,s..etc.(sorry,english isn't my native language) and 은&을 for letters like a,e,o,i...etc.
I actually learned that when it is written as "입니다" the "ㅂ" sound automatically turns into the "ㅁ" sound as it is next to the character "ㄴ". So instead of "Ib-ni-da", you say "Im-ni-da".
Correct me if I'm wrong tho.
In English there is only one verb to be. In Korean, there are two.
이다 is used when two things are being compared. A cat IS an animal. That house IS a train station.
있다 is used when talking about existence. There IS a house (A house is existing there). I have a brother (a brother is existing).
Hopefully that helps.