Is communicating with the dead sinful?

I understand intercession by the saints but If communicating with the dead is sinful then why do we communicate with the saints (i.e. ask them to intercede for us).

kinja,

The following link should assist you in better understanding the Catholic Church’s teaching on asking the Saints’ intercession. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.

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