Soul that splits in seven parts
Mr. Jonas Bystöm might read Alagaddupama Sutta: The Water-Snake Simile especially the introduction, which gives a good overview and the "Six View-Positions" section. The seven parts soul thing is a common folk believe even is SEAsia and has Tantric roots, one could say Hindu, and has influence especially many Mahayana approaches.

To be or not to be is no question. There is no such as any self-theory to be found in Dhamma since it has simply the liberation form suffering, so to understand its cause, as objective and aim. Do not waste your time with such, 99% of beings do so.

(Note: this answer has not been given with the agreement to be means of trade or the purpose of/for trade and/or keep people trapped and bound. How you handle it lies in your sphere, but does not excuse the deed here either.)