Interspirituality?
In his book "Not All Roads Lead to Heaven" Dr. Robert Jeffress, explains seven basic issues related to the uniqueness of Jesus Christ, and why it does make a difference what you believe about Him. Sincerely believing something is true doesn't necessarily mean that it is true. For instance, I can sincerely believe that 2 + 2 = 5, but I would sincerely be wrong.
Personally, I believe what Jesus said about himself. I've never heard about leaders of any other religion dying on a cross to pay the debts of evil men and women, or of anyone else who rose from the dead. The bones of other religious leaders are still in their graves. But I do know of one person who came out of the grave, the only God man who ever lived, Jesus Christ.
Those kind of credentials (based on historical evidence) and that kind of power give me strong incentive to believe in that person. Especially after learning that the whole reason that person was tortured and killed was on my behalf.