Buddhist Altar
A buddha podium is the podium on which you put Buddha. This is a Buddhist altar.
ぶつだん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
仏壇の前でうつ伏せになって寝転がっていると、母がやって来てそれは失礼なことだと怒られました。
When I was laying on my stomach in front of the buddhist altar, my mom came over and told me doing that was rude.