How to get to Katsuoji Temple from Osaka?

I will be heading to Japan in a couple weeks and just found out about Katsuoji Temple and am very interested! I am just confused how to actually get there as a first timer. I am already kind of overwhelmed by different types of transit systems (will still need to research on how the transit works). Is it difficult and confusing to get to Katsuoji Temple from Osaka for a foreigner that doesn't understand any Japanese (lets say from near Dotonbori where my hotel will be at)?