I have a question concerning the iconographical differences between Shaka Nyorai and Amida Nyorai. Both statues can be depicted standing with the mudra for bestowing fearlessness (raised right hand) and wish-granting mudra (lowered left hand). On JAANUS is written, that you can distinguish Amida from Shakamuni by looking at the fingers on each hand, because on Amida statues the thumb touches one of three fingers.
Now you can also find Shakamuni statues with fingers touching the thumb, like the Shakamuni Statue on Mount Shakka, which is associated with Shugendo. The reason i am asking this is, that I have a zushi (small shrine) with a statue inside, which has the characteristics of a Amida statue (thumb touching the index finger), but the Heart Sutra is written on the doors and I always thought, that the Heart Sutra is not very important in Pureland schools (except for a short recitation before meals in Jodo-shu temples). I've never seen the Heart Sutra being displayed on any item from the Pureland schools, because it doesn't have any reference to the Pureland. On the other hand, the doors are decorated with phoenixes, which I thought are more related to the Pureland schools and Amida.
Does anybody know more about the iconographic differences between Amida Nyorai and Shaka Nyorai or is there maybe not a clear iconographic difference between both?


Your other questions are way over my head I'm afraid. I'm still relatively new to Tendai and still learning. Sometimes, at our weekly services, we will chant the heart sutra before meditation and after, we will chant the nembutsu. I'm also, not familiar with the iconography of Shingon. Might be good if we can get Jikan and Eijo involved in this thread. I understand they are both busy though, so it might take a while.