Our Lama is none other than Dorje Shugden himself, without all the hissing and body shaking involved with oracle possession. When the Lama teaches, it is already the living Buddha Dorje Shugden teaching us. The Lama has omniscient wisdom, so why do they need to get questions answered by oracles? What is the function of the oracle if the Lama is already Dorje Shugden?
I have my own thoughts about its purpose, and I am greatly inspired by them, but I would love to hear what people think about my questions.
Very interesting thoughts, thanks for asking... it got me thinking after reading your comment.
I can only think of a few situations where this applies... and one of it is as what eyeoftara have shared with you, that Lamas have many different levels. Just like Bodhisattvas have many different levels, so the assistance of the Dharma Protector is essential to receive a clearer answer for the growth of Dharma.
Another reason could be that it is for the benefit of the students and others that may be looking. Not all students have complete faith in their Lamas, so receiving blessings, advice and dharma teaching from Dorje Shugden would help them. At the same time, for onlookers that do not know the quality of the lama, which is whether he is genuine or not, they can observe how the protector treats the lama. There are many cases when the Dharma Protector, when displeased with a less genuine lama, he would not receive the offerings from the lama. So looking at this video, it is quite obvious that Tsem Tulku Rinpoche is doing his 'job' as a Dharma teacher very well.
My 3rd and final thought is more technical in regards to the omniscience of a lama. There are 2 possibilities when it comes to this
1) The lama does have full omniscience but due to the nature of being humble and also the tradition of Lama Tsongkhapa's lineage of not showing any form of supernatural abilities... the lama has to find an alternative way of 'getting advice' for certain issues pertaining to the growth of Dharma
2) The lama does have full omniscience but due to him taking the form as a samsaric being, he some what experience some limitations due to the limitations of the body. I thought of this is because I have read a Zen story of a highly attained meditation master, who have the ability of transferring his consciousness for body to body. And there was an incident when he transferred his consciousness into a bird, there after he was unable to utilize his abilities anymore due to the limitation of the body that his mind is in. So for this case, perhaps it is similar to this story