I began Rocket Japanese yesterday and I'm on 1.2 (tea time). I know it's early on but I'm trying to get my head wrapped around "wa" used in the first two lessons. From what I've read in the forum, it seems:
1. You use it to indicate the subject/topic of the sentence (e.g. namae wa).
2. You use it to indicate a question with a rising tone (e.g. anata wa).
But then, I'm confused why it is used with konnichi-wa and konban-wa. Is it to indicate that the day or night is the topic? When I researched it online, the topic became too complicated for me to understand! Any simplistic explanation would be so much appreciated :-)
I don't know if I'm trying to get too technical too early on and it will be explained later.