What does this phrase mean: 'the points are lost on me'? Thanks

[Rusalka]

Test No. incompl/inter-61 "Losing It (1)", question 9

To be frank I find these philosophical discussions too deep for me and many of the points are lost ......... me.

(a) to
(b) on
(c) for
(d) by

Test No. incompl/inter-61 "Losing It (1)", answer 9

To be frank I find these philosophical discussions too deep for me and many of the points are lost on me.

Correct answer: (b) on

Your answer was: n/a
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What does it mean???
_lost on me_????

[Alan]

This means I don't understand.
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English as a Second Language
You can read my ESL story A day in the life of a driving instructor