Complex sentence: Experts suggest that this is due to the shelter warming inside his house which is an indicative of his hibernative and meditative state where he transcends materialism and ascends the highest levels of spirituality.
Split into simpler sentences: Experts suggest that this is due to the shelter warming inside his house which is an indicative of his hibernative and meditative state. During this period, he transcends materialism and ascends the highest levels of spirituality.